Yes, I could, but I don't want to. Go to store, walk around, wait in line, for what.. 1eur worth of milk? Plus you buy a bunch of other stuff that you don't need, because "it's there". I just make a list, go to the store once, fill up on 100, 150eur of stuff, and I'm done for a week or two. Stores are horrible, people are slow, they 'park' their carts in the middle of the aisle, so you have to bump into them to pass, they're too stupid to use the self-checkout lines but still use them and wait for someone to help them (scan stuff for them, instead of just using a normal line), people wait for 10 minutes in line, without realizing they'll need to pack their stuff and pay, so only after half of their stuff is scanned, they remember to take out their shopping bag, and only after they hear the price, they start searching their handbag for a wallet. Then they remember they need cigaretts too,... Delivery sucks too.. overripe bananas, bumbped apples, half-thawed frozen stuff, crushed boxes, long-lasting food just before the expiration date, etc..

Nope, weekly trip to the store minimizes all of the issues.