In my search to find the best ways to make AND save money via the internets, I of course investigated coupons. Early on, much to my dismay, I realized that I live in a state where stores DO NOT double coupons. What is coupon doubling, you say? It's when stores have special sales (usually once a week) where they double the value of ALL your coupons! So say you had a coupon for $0.75 off X. Super Awesome Grocery Store is running a sale on X - each X is only $1.50. You go to the store on Thursday, which is Double Coupon day.
1.50 X sale price
-0.75 coupon X2
= you are getting X for free. Seriously.
This stuff works. If you're questioning it, watch the show Extreme Couponing (on TLC maybe? not sure). However, if you're like me and no stores near you double coupons, and you also don't want to spend hours a day scouring local sales ads and matching them up with coupons, well, you're out of luck. Frankly, for me, couponing is just not worth the time and effort. If you find a coupon for something you already buy, use it. But otherwise, it's not something I'd recommend.
If you do live in a state where coupon doubling happens, or you're interested in couponing in general, here's some links that may help you.
For printable coupons:
For coupon matchups, local deals, and more: