So I don't really know if this would be a good idea, but I thought I'd put it out there to see what people think.
The basic premise is this: you are going to kill off(delete) one of your characters, and you can then "leave" and of his gear or items to any of your other characters. This would not allow you to move things between accounts.
You'd be able to leave anything, including bind-on-aquire stuff like greensteels or epic items.
The way to impliment it, after you "kill" your character, you get a window that looks like a chest window and has drop-down lists of all of your other existing character's names. Select who you want each item to go to.