With the price of gasolene these days, I try to do all my shopping on one trip to town a week, and Walmart is the most convenient place to pick up the regular stuff, like shrimp pellets, flake food, algae wafers, cuttlebones, and AquaTech filter media. But for aquatic plants, fish, and specialty stuff (like liquid calcium, fry food, and water test supplies), I go to the LFS. More and more, though, I am ordering online: I've been very pleased with the service and quality of stuff (plants, fish food, glass canopies, liquid carbon, etc.) and it beats the heck out of driving around town trying to find what I need.