HammerMill Copy Plus Copy Paper, 500 sheets, is $4.99 at Staples.
Use the $2 off HammerMill Paper found in the 8/29 SmartSource coupon insert in your Sunday paper, pay $2.99, then submit for the $4.49 Easy Rebate (you can do it online and won't have to mail anything in!):
It'll be free, and there'll be a $1.50 overage!
You actually can do this deal twice, so you'll get two reams for free + $3 moneymaker!