Most of my grocery shopping is online but I often like to go to special small supermarkets which have yet to find good arrangements for online marketing, or to fruit and vegetable bazzars.
In these occasions I quite often forget to take non-nylon bags with me (reusable fiber bags) which I want to always take to such places and which are anyway mandatory by law where I reside.
I have an Android operated smartphone (OnePlus 6) and I desire a FOSS-Gratis small app that will remind me "take bags!" each time I leave a residence (at least on chosen days and/or times of the week).
What will you recommend?