Albertsons: Twice the Value (TTV) coupons come in the Sunday paper. There is one insert per paper with three coupons on it. You can use up to three TTV per transaction to double any coupon you have up to 1.00.
Albertsons has recently updated their coupon policy to allow customers to receive overage on their coupons toward other purchases in the transaction (they do not allow cash back). Buy one get one coupons can now be used with a buy one get one promotion to get both items for free.
Walmart: Overage on all coupons can be used toward other items in transaction or cash will be paid back to the customer. Walmart makes price matching easy by price matching any competitor at checkout.
Target: Offers web coupons and mobile coupons that can be stacked with manufacturers coupons to get great deals. Target does do price matching but it needs to be done at the customer service desk and there are stores and things they will not price match.
Fred Meyer: Accepts any competitors catalina coupons.