The great thing about this coupon is the fact that it is $30 based on what the price of each product is, not $30 after coupons and taxes. So all you need to do is add the shelf tag prices up then once you hit $30, you're golden!
I really like this coupon because after you apply the $5 store coupon, you are still inclined to get more savings if you have MQ. The only flaw with this coupon seems to be the fact that you cannot use any other store coupons with it. Just make sure you hand the $5 off coupon over first before all your MQ or else you won't be able to get the discount.
ALSO, here is my ad match for the week at DG. You'll be sure to snag great deals!