Common sense dictates that we should stock up on the foods we routinely eat when on sale, but frugal living blogger Mr. Money Mustache has taken this concept a bit further, developing what he calls a food algorithm.
- if a food is overpriced, buy zero or the minimum possible amount you can live with
- if a food is regular price, buy an amount to last until your next grocery trip (minimum 1 week supply)
- if a food is underpriced, buy at least enough to last until the next expected sale at this level (4 weeks?)
- if a food is drastically underpriced, buy a near-infinite amount, limited only by shelf life of food and available stock on shelves. If Bananas go to 1 cent per pound, you can't really benefit. But if rolled oats dropped to an all-time low, I'd probably buy at least a year's supply (100 pounds).
Stocking up makes sense for items that won't perish and you know you'll use. My family routinely has a stock of dried pasta, breakfast cereal, and cleaning products as my wife is skilled at buying these items cheaply by combining sales and coupons.
The food algorithm is mostly common sense, but if you're a young person out on your own it can be helpful while learning to manage your food costs. Photo by Matt McGillivray
Grocery Shopping With Your Middle Finger | Mr. Money Mustache
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