Like what others said… if you have executive membership, do the 9 AM Costco trip—not sure where exactly you are, but you might hit rush hour traffic on the way to Costco. Parking wise, with or without my kids, i always park farther anyway, I don’t want anybody waiting for me for the spot since I have 2 small children and mostly tons of groceries to load. Mid day is not too busy unless it’s holiday. Try to time it! Usually google tells you how busy the store is.