It doesn't have to be a "luxury". In the UK it costs me £1 to have my groceries delivered to my door. My nearest supermarket is only 10 mins walk, but spending

It doesn't have to be a "luxury". In the UK it costs me £1 to have my groceries delivered to my door. My nearest supermarket is only 10 mins walk, but spending a few pounds a month to replace a weekly 30+ min shopping trip with deliveries is still a no-brainer. And that's before I even consider that my local supermarket seems to have higher prices...