I stopped into Safeway today to just double check the prices on the Buy 4 Save $4 promotion. Here are the highlights from my store. You might find some variation at your store.
Pepperidge Farms Crackers $2.00 each when you buy 4 items
Use $1/1 Pepperidge Farm Baked Natural Cracker Chips, exp. 1/29/12 (SS 11/06/11 R)
Final Price: $1.00 each
Nabisco Crackers (Wheat Thins, Ritz, Triscuit) etc… $1.99 when you buy 4
Use $1/2 Nabisco Crackers coupon
Final Price: $1.49
Cheese Nips $1.49 when you buy 4 items
Use $1/2 Nabisco coupon
Final Price: $.99 each
So you can mix and match and still get the same price just make sure you buy in increments of 4.
And one other deal I noticed:
Nivea Lip Balm $2.09
Use $3/2 Nivea coupon from 12/4 RP
Final Price: $.59 each
You can see the complete list of Safeway deals for the week here.