Mad Moxxi's Underdome DLC has a shop-like booth for the storage of items.
As for trading between characters that gets tricky but I have done this once.
First look in your "My Documents" folder dig through my games until you find your Borderlands save files. Take that folder and create a zip of it. Do this whenever you think a backup of your saves would be appropriate. Like, for example, before you try this next tip.
I have found, and others have confirmed, you can run 2 instances of Borderlands from steam. Try pressing alt + enter, that will put you into "windowed mode" i.e. turn off fullscreen. Go to vid options and put the resolution down to, say, 800 x 600. open you games tab in steam and run BL again. Viola you have two screens now. Start a game in Lan from one character and join yourself with the other character.
Complicated, no? But easy to pull off. I only did this the once. The one time I needed to. If that sounds too daring then yeah, you'll just have to find a friend who can hold on to it for you.
Others have used this to stand a new Character in a corner and then run a lvl 50 around highlevel areas. Effectively powerleveling ones-self.
I just want the Hat!
Last edited by Firebrand; 6th February 2010 at 12:39 PM.