Twice I have spent over an hour choosing items to order, left all the items in my shopping cart for a few days while trying to cut down the amount of stuff (there are so many wonderful things people have designed! I want them all!). Both times when I went back to place the order my shopping cart was empty. Does it empty after a certain amount of time? I don't want to waste any more time finding all the items I want again (I can't remember all the names) if I'm never going to be able to order due to the shopping cart emptying itself.