One of the most valuable items in an 7 year old's life right now is Star wars trading cards. BUT, the" long card" holds the most value. Everyday after school is over all the kids in Matt's class whip out their binders and the bell rings for the trading session. Its hilarious to watch and listen to. Matt actually spends the time marking off the check list and putting the cards in proper order. Currently any chore, or any behavior issue can be traded for a pack of cards. I hope this last's a little longer..... I have a big chore list.