Office Max: 100% store credit rebate when you buy up to 2 backpacks.

Now Office Max is jumping on the excessively-complicated-backpack-rebate bandwagon, too - and you can do the offer for up to 2 backpacks, if you want to make it even harder on yourself. No gift cards for this one, though - you have to already be enrolled in their MaxPerks rewards program.

1. Purchase up to 2 backpacks and earn the purchase price back in Bonus Rewards (to be spent at Office Max).
2. Rewards earned for the backpack offer will available in a member’s account in September; Bonus Reward for MaxPerks Rewards for Teachers members will be available in October.
3. All other Bonus Rewards will be available in a member’s next statement. MaxPerks enrollment required.

Offer is good through July 31, if you're willing to put the work in on this one.