At a baby shower on Saturday the grandma- to- be (who is a very young, cool grandma) asked me to pass along discounts for Seniors. So I will begin with grocery stores!
Farm Fresh (local store) 5% discount on Tuesdays and Thursdays over 55
Harris Teeter 5% discount on Thursdays over 60
Food Lion, Bloom, Bottom Dollar Food offer no Senior Discounts
Kroger does have discounts but they vary greatly by state. I would suggest calling your local store and asking!
As always I would suggest calling and confirming before you visit the store, in case the people I talked to today gave me the wrong information!