Man, how did I JUST find out about this!
Buy 5 or 10 participating Nabisco crackers (must buy in increments of 5, I think)
Use five $1/2 coupons from here (2 per computer), from the 12-13 SS or from the Kraft Year of Savings booklets they were giving out awhile ago
Use 4 doubles
Submit for buy 10 get $10 rebate here
Net: $7 moneymaker plus lots of yummy crackers!
For a full listing of deals at Safeway check out Frugal Living NW