I still live alone. And I still buy food in bulk at Costco.
I can make a big bag of Costco spinach to last solid 7 days. I keep them crispy fresh until I finish the whole bag. Recently I improved my vegetable storage system with a new set of 3 Rubbermaid containers at Costco. I am not sure if they are still available at Costco. They were $15 or less for 3 containers (6 pieces). That's a pretty good price. They will pay for themselves in a few month.
For a large bag of Costco spinach, I need all three containers. I put 2 sheets of paper towels at the bottom of each containers. This system keeps my Costco spinach (& other vegetables) last a lot longer.
This saves my time and money - and elevate my life style.
Merry Christmas, everyone. Now I get back to massive eating.