There is a Rare Martha White Coupon hiding on Coupons.com under the 99218 Zip Code. You can change your zip code here to locate this coupon quickly.
Walmart sells the Muffin Mixes for around $0.98 each. Use this $0.50/1 Coupon and pay just $0.48 each!
Martha White Muffin Mix, $0.98
$0.50/1 Martha White Coupon
$0.48 ea. after coupon!
If you have a grocery store that doubles you could possibly get these Muffin Mixes or the Cornbread Mix for FREE after doubles when these items go on sale for $1 or less!