When I was in college me and my roomates saved our beer caps, the plan was to cover a coffee table top, Never happened. Too drunk I guess. I did save a lot of beer labels and covered a lamp, because it was an awful pink. I'm gonna have to post a pic sometime.
When we moved out, We had a cardboard box full of Beer caps and a trash bag full empty Marlboro packs.
Me and g/f got the following from marlboro
3 Zippo lighters
2 T-shirts
2 Sleeping Bags
1 Wool Blanket
1 Inflatabile Bed
1 Marlboro Book Bag (More of a laptop pack)
1 Marlboro Leather Bag
1 Ashtray
Never underestimate the power of Pack rats.