I've installed the apps for Argos, Curry's, Cex, John Lewis, and a few others on my phone including food, clothing and toiletries suppliers. If they don't have what I'm after then I may revert to Amazon if necessary. I'm also trying to ditch the "must buy now" impulse that Amazon has thrived on, and going to local physical shops instead.

Amazon's supply and logistics are way superior to their competitors, and their app usually is too. This does introduce a bit of friction when making the switch, including a slightly higher price sometimes. However, all in all, it's still worth doing.