Shopping Success!

So I have been trying to tighten up our food budget by better menu planning and the use of coupons. I've been seeing the savings grow each week and I'm telling you it is worth the investment of time and planning. Today I went to Publix and bought $66.15 of food, after BOGO and coupons some doubled some not, I saved 32.28 leaving me with a bill of 33.87. I know there are others who have done much better than that but I still feel good about my savings :) I wish Walmart would double coupons. Anyone know of a store that will triple coupons?