Where do you get off telling other people how they should do their shopping? If other people want to invest in a few aids for those supplies that are both important, yet forgettable, that's entirely up to them. Lots of snobbery going on here. "Lazy" a few times, even "irresponsible". Get out of town, it's none of these things. Everyone has forgotten to buy more laundry detergent once when they need it, it happens, and this offers a handy hedge.