After I graduated from college and started making a little money, I was struck by an idea that seemed to come out of the blue: Why not buy a year’s worth of consumables all at once?
The concept made at least some sense. Running out of anything has always really bugged me. So has needing to make a purchase because I’m about to run out (invariably at a higher price and maybe not finding what I really want). Also the reality of returning from a shopping run and realizing I’d forgotten something, in spite of the Master List, motivated me to look for a better way.