I'd question those numbers: 5 minutes for urban shopping and 2 hours for suburb shopping. So you're saying that in 7 5 minute stops (35 minutes), you're able to accomplish what it takes someone else in a suburban mega-grocery store to accomplish in 2 hours?
Apart from that, though, almost anything that you can easily plan out and do in bulk is going to out-efficiency something done in smaller iterations involving a lot of repeated steps (going in, walking around, checking out, etc.).
When we go shopping on the weekends, we mostly buy for the entire week. We buy quantities of food that can make plenty of leftovers and buy water/soft drinks by the cases that last several weeks. We try to make the process as efficient as possible and we could stop by the store more often since it's close - but that would waste a lot of efficiency.
If the choice is between driving to the store 1x a week vs 7x a week, then you have an excellent point, but if the choice is between driving 1x a week and walking 5-7x a week, in the long run the latter is much better for my health, and it replaces time I spend on the treadmill in the gym.
> almost anything that you can easily plan out and do in bulk is going to out-efficiency something done in smaller iterations
Not always. When I cycle or catch the bus home, I pop into the shops near my house, grab some stuff I need, and then continue on the way. Or I grab stuff at the supermarket near work, and cycle home with it in a bag.
Now I don't need to plan a big trip. I am already traveling to go home.
It's more like 10, and you probably don't do it 7 days a week. You take a bus or train to your convenient stop near the market. Walk into the market, grab a basketful of goods, pay, walk home.
Apart from that, though, almost anything that you can easily plan out and do in bulk is going to out-efficiency something done in smaller iterations involving a lot of repeated steps (going in, walking around, checking out, etc.).
When we go shopping on the weekends, we mostly buy for the entire week. We buy quantities of food that can make plenty of leftovers and buy water/soft drinks by the cases that last several weeks. We try to make the process as efficient as possible and we could stop by the store more often since it's close - but that would waste a lot of efficiency.