I highly recommend printing a copy of the coupon policy for every store you frequent. I very rarely have to whip it out in the store, but it’s still nice to have, just in case!
CVS – They do not have one online, but Living Rich With Coupons has the information for you
Big Lots – Does not accept coupons
Aldi – Does not accept coupons
If you want me to post more, let me know which stores you want!