I had few large electronics purchases from there with good discount plus keep buying gift cards for Uber etc with great discount.
Also we do 3-4 in person trips for food around holidays (and treat ourselves to $5 chicken 😃)
Plus paper towels, toilet paper, toothpaste, cleaning supplies, dishwasher tablets, laundry detergent, batteries etc are exclusively sourced from and delivered by Costco in my household due to good price.
So essentially I don't go there in person as much, yet still benefit from it quite a bit