Sheathe your scissors: Buy coupons online
The minimum order is only $3, but with shipping and a 50 cent processing fee, the site is probably only worthwhile for ordering lots of coupons. But if you find yourself buying the same products regularly (and who doesn't?) you can probably save yourself a ton of money here. The prices per coupon are pretty reasonable -- 50 cents off Dawn Direct Foam costs 5 cents -- if you live in an area where coupons are doubled, that will give you a return on investment of 2,000%. Warren Buffett, eat your heart out!
For my coupon-saving opportunities, check out MyCoupons.com, which has a pretty cool list of special promotional codes for various retailers: Shoes.com, Kohls and Victoria's Secret, to name a few. They also have a pretty cool coupon blog.