There are many places on the web to get coupons.  Here are some of my favorite places to get printable coupons.

Target Printable Coupons
Coupons.com

CoolSavings.com

Cellfire

EverSave

Free Flys

Savingsandcoupons.com

ShopatHome.com

Disney Magical Savings

Cuckoo Deals Map – Coupon Match-ups For All Stores
Coupon Deals