We routinely go to 4-5 different places for our groceries based on price and quality. Enormous PiTA, but we despise overpaying. I wish I could convince my wife to forego some of the "name" brands she insists on, but I pick my battles
We start at the furthest store away then slowly work our way home, vice versa, or stop on the way home from whatever we're doing that day (work, youth sports, etc.). All of our stores are within 2 mi of home anyway. I will make a special trip to get a bogo pork butt roast, but not to save a buck on avocados.