[Lucid:]

I have an app that is basically a fancy grocery checklist. Put in an item, sort it into a category, and it stays in an "inventory" of items even if you check it off your list when you buy it (so you can remember to buy it again when you're out.)

I've eventually accumulated almost everything I ever need to buy in this list. I usually un-check items as I use the last of them, but before I leave the house, I do one last runthrough to un-check anything I missed. Since I've already sorted them into categories/aisles, I just walk my grocery route and pick up the things from my checklist in each aisle. Usually I'll allow myself one "treat" like chips or chocolate per grocery run. I don't really buy snacks...ever... Everything else, I stick to the list, otherwise, I'd go crazy getting chips, candy, and other yummy stuff that I don't need and costs a lot of money.