Many Stores Accept Competitor Coupons

Do you know some stores accept competitor coupons? It will vary depending on store, location, policy, manager but it doesn't hurt to try to ask/use them. I was able to use 20% Harbor Freight coupon at Home Depot and that helped me save some money.

Another example: Michael's Arts & Crafts and Joann's accept each others coupons, or Hobby Lobby coupons but Hobby Lobby does not accept any competitor coupons. Michael's Arts & Crafts and Joann's often have 40%, 50% or 60% off at different times so it's nice to save money.