@suetanvil @mhoye Extending the "many rolls of toilet paper", I counter my procrastination + easily distractedness by buying most products in sets of 2+ (vitamins, shampoo, deodorant, foods, etc). Switching to the backup starts the clock early enough that I will ACTUALLY buy replacements just before the second runs out. Easier than me noticing/remembering "when I'm low"
More storage space, but also more peace of mind and fewer frustrated moments, ultimately the same(ish) price.