Great job Jon!!
I typically shop Amazon Prime (love the free shipping, low prices, fast delivery), Sam's Club (I love some of their products and I use their credit card for cash back, which also pays for my membership), Wal-Mart (low prices) and a local grocery store (double coupons). On larger priced items that I regularly buy, I keep track of how much each item is at the different retailers. That way, if I see an item on sale somewhere or the price goes up or down at any of them, I keep track to make sure I'm getting the best price.
I also shop the local thrift store, which is a religious based charity that uses the profits to help support our local charities. I donate all unwanted items to them as a double charitable donation.