I avoid using the ‘Self Service Checkouts” it takes a little longer but it reinforces, to the shop, that many of us can’t, won’t or don’t want to use “self-service” checkouts.
I like it.
One of the criticisms I level at myself is I am an “armchair activist”, talk a lot, do stuff all. On this issue, I can dedicate a little actual activism time when I go to the shops.
I also pay in cash
I try not to use cards because I don’t like the idea of being constantly tracked and hacked by governments, corporations and criminal gangs.
I also use cash for my budgeting, when I have spent it, it’s gone, When I use that card. money seems to evaporate into space.