I hit Costco once a month just because they have the only pharmacy near me that always has my prescription medications in stock. Then I hit the bakery section for the blueberry muffins, speed through self-checkout, and then get a hot dog and scroll Hacker News or something like that while I eat it.

In and out in 30 minutes at most. But I've done the same thing at Ikea. You can just go there for the meatballs! You don't have to buy furniture too!