A bit of a woo-woo aside but I've been trying to practice more gratitude thinking in my daily life and the grocery store is an easy place to be reminded of how good we have it.
Practicing gratitude is probably the single easiest way to increase one's happiness, and yet it's so easy to forget to do it even if you know that. At least for me.
One thing we can do is keep a gratitude journal where we write down things we're grateful for. Can literally be grateful for the sun shining, or not experiencing an earthquake, for having the ability to write in a journal in the first place, etc.
It may be a miracle of logistics when ignoring negative externalities like carbon cost vs not shipping it halfway across the globe. Why can’t we eat seasonally? It usually tastes better and makes things less monotonous
I'm a believer that the largest part of what led Yeltsin to fundamentally change what it was, and thus cause the dissolution of the USSR, was his impromptu grocery store visit in the US.