I shop two stores weekly or bi-weekly, always Costco then I switch the second up between Natural Grocers, Albertsons, the Farmers Market, or Winco, based on sales and what I need. I will also stock up on items that are consistently a good price or I can’t get at the other stores when I go. All of these stores are near each other, and I am 15 minutes away from them. I also keep a list with prices for Costco so I can compare deals/sales at the other stores. With little kids, making more than two or three stops wears me out.