Easy 10
Brain dead MUG SHEEP
Bags and hands. You can easily fit a weeks worth of shopping in a rucksack, I have been doing it my whole life. Transporting to the venerable is a decent point though. Though it seems like the government should have put something in place for it.
Then I can only assume you live on your own, and survive largely on dry Ryvita crackers and After Eights, whilst wiping your arse on packets of wetwipes.
I on the other hand have 3 adults in the household, and there's no way I would choose to yomp my way on a 6-7 mile round trip to Tesco to cart a weekly shop back through a zombie apocalypse, when I can just do the trip ISOLATED in my motor, and not spend half the day doing it.
Good luck with your rucksack though.