If you're totally into cash, you should look at Amex's Blue Cash product.
you get 5% at the grocery, and 1.5% on everything else.
https://www143.americanexpress.com/c...CARDS/77/1/0/1
NASA Credit Union has a 2% cash card. 1% on the first $1000, 1.25% on the second $2000, 2% on all everything above $2000.
http://www.nasafcu.org/l2.aspx?ci=1042
If you run $100K though either of these cards, you'll do a lot better than MR points for Home Depot cards.
just sayin...