As if you needed another reason to come to Congress of Gamers... we've started a No-Ship Math Trade! So please dust off those games you never play, add them to the list at http://www.boardgamegeek.com/geeklist/34335, and start dreaming of all the fun you could be having with some of the other games on the list!
If you have any questions about math trades, you're in the midst of experts -- just ask Kevin, Jason, or me.