Tip #1 Trash it!If you have never used or looked at an item/folder, the chance is very high; you’ll never do so. So trash it!
…
What stops you from doing this?
Curiosity about what is in there? If you were so curious, you would have looked at it already.
Regrets about loosing something valuable without knowing about it? If so, go and look through everything, spend hours browsing, rezzing, sorting it all, you’ll know for sure, you didn’t miss a thing.
You still can’t trash it? You just can’t let it go? You really can’t? Then I am sure, your real home looks like a warehouse too You must be keeping all those wires, old videotapes, shoes, postcards you never look at, probably once when you’re packing while moving to another home.
But, if it is really impossible for you to trash some items, because you heart starts breaking thinking of it, there is a way to keep them and reduced your inventory (unlike in rl).

Tip #2 ArchiveHow to archive:
*You rez a box, drag and drop in as many items as it can handle (I prefer around 100, otherwise it will take much longer to open); For full permission items, such as landmarks, you can also use a notecard.
*Name the box something like ‘Archive: Textures’;
*Take the box into your inventory and put it into special folder named Archive;
*Trash those items you copied into the box;
*Clean the Trash.

Tip #3 ManageThe best way to keep your inventory in order is to sort things BEFORE and NOT AFTER. What does this mean?
*Name or tag your items and folders.
*Sort those items you need, put them into prepared subfolders and regularly delete those items that were not sorted. Do it each time before you log off.

An example with the Landmarks folder:
*Make some subfolders in the subfolder Landmarks: Shopping, Clubs, Exploration and so on. You may create extra subfolders in the folder Shopping, something like Appearance, Clothing, Shoes, as many as seems reasonable and manageable to you. Making too many subfolders can make it less manageable.
*Each time you get a landmark, put it into one of the folders you created. It takes you couple of seconds, but saves hours sorting them out afterward.
*Later, on Your Inventory Cleaning Day, you can filter Landmarks and delete all those you haven’t sorted into your folders, without teleporting to those places. (If I occasionally come to a place that dissappeared, I trash that landmark and do a new search for a new location. It takes less time than teleporting each time to a place to see if you still need that landmark.)
The same process of management is useful for Objects, Textures, Scripts, Snapshots, Clothing, Appearance, Notecards. There are a lot of items that you don’t need, so don’t waste your energy on them, trash them as soon as possible. Keep only those things you need. If you are sure you need them, make a subfolder ‘Unsorted’ or something similar.

Tip #4 Y.I.C.D.
Your Inventory Cleaning Day. Make it a habit. Once a month would be enough. Put it in your agenda. Make it a fun time with your friends.
*Go to a sandbox or a place that can handle some extra prims. It’s a good place to rez those objects you are not sure about. Remember: deleting a rezzed object doesn’t delete it from the inventory, if it has copy permissions. Delete it from your inventory immediately, as well, if you don’t need it anymore.
*Filter and trash: bald bases, duplicate items, demos, objects named ‘Object’, unpacking scripts, hover texts scripts, all unsorted landmarks, notecards, textures etc. If you were following my tip #3, it won’t take long. If you constantly leave items unsorted, you will end up spending more time on this stage (if you don’t know how to filter, see Link)
* Trash or Archive.
* Clean the Trash.
* Feel free from those extra 10K items you didn’t need.
* Go celebrate!

For more inventory management tips you may want to check:
“Inventpry Management tips” on Second Life Wiki
“Inventory Management 101” on SL Nowt
“Tutorial: Inventory Management” on Sheek
“Inventory Explosions” on Shopping Cart Disco

I do…

It was my third day in SL. I was still walking around help island, bothering mentors with questions and making friends. It was peaceful, friendly and even a nude griefer at the local sandbox couldn’t spoil that. My friends and I knew every inch of the island from the northern sim border to the southern, from west to east. It felt safe. Everything was cozy and we talked about the Mainland as if it were a legend, another dimension, an afterlife. We decided that we wanted to stay on help island as long as possible, because we knew there would be no turning back once we left.

Suddenly, though…Black Screen… Teleporting scroll line… Some-thing happened (well, not something, it was a SL glitch) and all new residents from help island appeared at the place in the middle of nowhere! We had been driven out of paradise… shocked, disori-ented, lost children not knowing what to do or where to go.

“Where are we?” Overcome with childish curiosty.. “Let’s explore”! We went flying around a big forest, waterfalls, mountains and lakes. It was really amazing. At that time, the viewer didn’t register your teleports and I was too distracted by events to create a landmark. I was never able to find that place again. And I am still searching…

Since then, I’ve made thousands of teleports, none have been as exciting as that first one, but there are still many places in SL that amaze me. Each day I discover new places and it seems like the longest journey ever. At times I have to be fast, as many places disappear in a split second.

Most of the time we are busy, but if you decide to ‘take a day off’ and enjoy the spirit of exploration again, please, consider my helpful tips:

“In-world” possibilities:

*First of all, you can use the built-in search (ctrl/cmd+F). I like the Showcase tab, which is also available on the official SL website. Showcase is the Fashion, Music and Arts Guide to SL. Residents submit their locations to Linden Lab and, if the business/location meets certain criteria, they are included in Showcase. The places you’ll find there are well known and you may also have seen pictures of them on Flickr, as well as in many SL magazines. For me, Show-case listings are only a starting point. If you would like to discover a real jewel, you need to dig deeper.

* Ask your friends. We often take for granted what we know, so your friends might not even be aware that you’ve never heard of their favourite “OMG!” place.

* Inspect people and objects, use profile picks to find more unusual places. How do you inspect an object? Right Click>More>More>Inspect and you see information about the crea-tor and owner of the object. Then, using resident profile picks, you might find a great new place.

*For fashion finds and some fun, I use the FashCon HUD. Use the Tour Bus option and every five minutes you’ll get a landmark to a shop owned by a designer in the Fashion Consolidated Group. Sometimes five minutes may seem too long, but other times you may want to stop the tour to enjoy a really good look around. You can obtain the FashCon HUD from any shop with a FashCon kiosk.

How to make a SLURL in-world:
*Open the map (ctrl+M) and click copy to clipboard. You may also use this option when inspecting a landmark (right click -About Landmark from the inventory). Instead of clicking Teleport, click Show on Map and when it shows a destination then click copy to clipboard. Now you can paste the SLURL to a notecard, email or wherever.

“Out of world” possibilities:

*You may browse some Flickr groups:

SL Tourist Board (SLURL in descriptions) http://www.flickr.com/groups/sl_touristboard/

Favorite SL places http://www.flickr.com/groups/835535@N25/

*You may visit some websites:

SL Buzz: snapshots with slurls http://snapshots.slbuzz.com/

BlogHUD: snapshots and blogging with slurls http://bloghud.com/

Snapzilla: snapshots with slurls http://www.sluniverse.com/pics/

By sending an in-world postcard (snapshot) to the email of a website, it automatically sends a slurl with the picture. Easy isn’t it?

How to make a slurl “out of world”:

*Go to http://slurl.com/build.php and build your own slurl.

Basically slurl includes: http://slurl.com/secondlife/ part +Region name + its X coordinate+ its Y coordinate+ its Z coordinate (use %20 instead of space in the Region name).

Tips:
* first choose your sl name
* make an email that mirrors the name
* register on secondlife.com
* try to keep your accounts consistent accross networks.
* too many blogs and posts to handle? check this tutorial email2blog

Questions:
a) which activity do you prefer? Doing business, to blog, sl photography, socialize, explore?
b) which platform seems better to you: yahoo or google?
c) Do you need all those accounts?