Yep, this. I use Paperless on my phone, it stores the items even after they're checked off so re-adding them is as simple as typing in the first letter. As I notice we're running out of something I add it to the list and then before I go shopping I do a quick cabinet/pantry/fridge/freezer inventory.I keep a running list and add to it when I need something
I keep a list in the Notes section of my phone.