Coupons, Coupons and More Coupons

I spent all day yesterday clipping and organizing my coupons.  I was using one system that just didnt' seem like it was working so I had stacks of coupon inserts to go through.  But I'm glad to say that after 8 hours of sorting, clipping and tossing I finally got it done.  Now I'm ready to make a list for the week.
I'm not sure about you but with all these shows about couponing and saving money and getting things for free -- its a lot of pressure!  I feel like if I go to the store and don't save at least half of my bill then I'm a failure.  Although just one time I'd love to save 90%-95% just to say that I did it.
How about you?  Do you coupon?  What's your strategy?  Do you use a binder? a folder?
I'd love you to share your coupon "secrets" and strategies.