$5 from Office Depot

Starting this Sunday January 9th Office Depot will now be giving you $5 back for every empty catridge you return.  You can turn in up to 20 a month!

Also, you can get a free ream of HP Multipurpose Paper with ColorLok.
Retails $7.79 use the $1/1 coupon found here.
Then submit for the $6.79 rebate that prints at checkout.