Smith's: General Mills Cereal Promotion ($.60/box)

Smith's is having a promotion that when you buy any Four participating General Mills Cereals or snacks (limit one gift card per transaction) you will get a $5 Smiths Gift Card.

Here are some of the best deals with printable coupons:
Buy 2 Cheerios at $2.50 ea.
Buy 2 Chex at $2.50 ea.
Use $0.55/1 Cheerios (print 2) or here
Use $0.75/1 Chex (print 2)
Pay $7.40 - Get back a $5 Smith's gift card
Final = $2.40 ($0.60 each box)

If you like Kix or Cheerios Cinnamon Burst there are also coupons available, but you will pay about $2 a box for these.