Print and keep these coupon policies in your coupon binder or wherever you organize your coupons. Please keep in mind that this list is not intended to be exhaustive; it represents some of the major stores that I share deals for here at The Coupon Project. Please do check in with your local store(s) for their policies.
Here are some posts related to coupon policies and coupon policy changes.
The New Coupon Policies (June 11, 2012)
Albertsons Coupon Policy Changes & Overage Acceptance (December 16, 2011)
Important Changes to Fred Meyer Policy (deals with manufacturer limits, October 14, 2011)
Changes Coming to Albertsons Twice the Value Policy (June 30, 2011)
Albertsons Twice the Value Coupon Policy Now Available (May 17, 2011)
Fred Meyer Now Accepts Other Store Catalinas (March 4, 2011)