Coupons!

I went to Safeway yesterday and saved $113, which was more than I spent!!
I am absolutely addicted to couponing and hunting for deals! I used to make a list of foods and things that I needed, and if I had a coupon or it was on sale, great! I don't do it that way anymore! I have joined several free blogs and websites to keep an eye on all the deals!
Most people use a binder to keep all of their coupons organized, but I honestly don't have the time to keep up with that. What I do, is have a file box and organize my coupons by date. Most coupon sites will give the date of the newspaper the coupons came in when they match sales with coupons, so then I can just go to that file in my box! I don't clip all the coupons when I get them, because I usually use maybe 40% of the coupons in each of the inserts. I rely mainly on online coupons to save money.
Something I learned when starting to coupon is that you can use a store coupon AND a manufacturer coupon on the same item! This is also true for a paper coupon and an ecoupon! This is the biggest way I save money!
The main stores I shop at are Albertson's and Safeway. Safeway has been having a lot of great deals lately, and Albertson's always has great deals on meats!
My favorite coupon sites:

KrazyCouponLady
Frugal Girls
Hot Coupon World
Just Frugalicious

And sites that have coupons:

Coupons
Redplum
Cellfire
Shortcuts


If you're into couponing, what organizational method do you use? What are your favorite stores? How do you save the most money? I'm always into seeing what others do!