Although I've never actually picked up any cards on craigslist I regularly check out the listings to see what's around. This listing caught my eye as it was listed as "Giant Chest of Baseball Cards," here's the accompanying photo:
Now that's one way to store your cards. I really enjoy that the only card that is obviously visible is the 1986 Topps #443 Bill Buckner. Wouldn't it be so great if there was a Don Mattingly rookie or Ozzie Smith rookie sitting on top of the pile to entice you into wondering what could be found underneath.
The literal pile of cards...dinged corners and all... can be your for $500 or something nice in trade.