One of my goals this year was to give more of my time, resources and money to various charities. I had two coupons for $4.00 off any size bag of Purina dog food that were about to expire. I bought two bags of dog food this morning at Walmart. Each of the bags was $4.72. After coupons, I paid .72 cents per bag. I'll be donating them to the Humane Society this week. My son loves stopping by to visit all of the animals.