I want to give you an example of how you can "stack" coupons to save more. This is a purchase I made today at Walgreens:
3 deodorants at $5.49 each = $16.47
minus store deal of buy one get 50% off second = $13.73
minus coupon for buy 2 get third free = $8.24
minus coupon for 50 cents off one = $7.74
Total spent is $2.58 per each deodorant
If I had two more of the 50 cents off coupons I could have save a dollar more. Stacking takes a bit of time and creativity, but it can definitely be worth the few extra minutes of time.