[joshstrange]

Buying a different toothpaste seems very odd, you need to ensure ordering to make this work so all the extra toothpastes are going to be in one spot. When you grab the last one then you order more or add it to your shopping list. Personally I don't let myself pick up or use the last item until I've ordered more to prevent "I'll remember to do that later", at worst I'll set a recurring hour reminder to buy more so I don't forget.

I just have rows of everything I use that's consumable in my pantry or bathroom closet (depending on the item) in rows. If the row is getting too deep then I need to skip/limit my subscribe and save (or skip buying more when it's on sale if it's not automatic), if it's down to the last item or two then I might order more.