I love my Ocado deliveries, especially because they auto-populate the delivery based on our past orders + some light guidance (list of stuff to never add automatically + list of stuff to always add) and it's generally "close enough" that I often can't even be bothered to log in to check or modify the order...

Like you, I really resent the clothes shopping as the last bastion...

There are options there too, though, I just haven't gotten around to testing them.

E.g. ASOS offers a premier type subscription for a tenner that gives you free next day delivery and one free returns pickup per order, so you actually can order stuff, try it on and send it back as much as you like. They focused on women first but apparently have a large range for men too. I think you also can hand in returns at local corner shops many places if it's not convenient to have them pick it up...