I just wanted to take a moment here to caution the newbies. A lot of unscrupulous vendors will box up a bunch of freebies that you can find anywhere in SL and sell them for $10L, $25L or more. I don't mind paying $1L if it's freebies I've never seen before, but I strongly caution you not to
pay for boxes or bags sitting in front of stores until you've been on SL for a couple of weeks and have stocked your inventory with the legitimately free freebies first.
Always
search your inventory before buying something to be sure that don't already have the item! There are so many freebies and giveaways at stores, that it's very likely you may already have it.
Speaking of inventory...Let's discuss inventory management for a moment.
Very early on, you'll want to create subfolders under the system folders that SL gives you. You'll have a system folder called Clothing. Create subfolders under it for shoes, outfits, skirts/dresses, lingerie, jewelry, etc., and be
diligent about organizing for a few minutes every day. If you don't, it won't take long at all before you find your inventory so unmanageable that you can't find
anything,
and it's a shame to pay for a beautiful dress, and not be able to find it later!
Further, in your Recent Items, you'll find a system folder for Objects. I recommend that you create daily subfolders in there every day at sign on, and move everything you got the day before into it, before you run around getting stuff on the new day. That way, you'll be able to see (if you don't have the time to spend organizing) what you got on what specific day. I'm afraid I'm not explaining this very well, so feel free to ask me here or in SL if I've confused you.
Oh, and one last thing - if you buy an outfit, resist the temptation to break it up. SL has a wonderful feature in inventory called "Replace Outfit". By right-clicking on an outfit's folder, you can choose to wear the entire outfit at once, instead of taking off the old outfit and adding the new outfit on one piece at a time. Word of warning though, I usually lose my hair when I do this and have to put it back on. I'm still working on finding a better way to manage that myself.