Have you ever found a hot deal on a product, stocked up and then realized it’s just not right? This can be a stockpiling pitfall, but it’s easily avoided.
Do NOT stock up on a new product without trying it first–even if it's free. Allergies, tastes, odors, flavors or effectiveness could come into play. Buying a giant package of a different diaper brand and finding out it always leaks, stocking up on cheap razors and ending up with 12 bandages to cover all the nicks and cuts, or getting 20 deodorants and realizing after one application that it makes you break out are just a few of the possible perils. Moral of the story: it's unwise to stock up on an unfamiliar product just because it's cheap or free. Always sample the product before buying in bulk–it will save you money in the long run.
In addition, buying too much of a product, even one that you’ve tried and loved can be a problem. Be careful not to buy more than you can use before the product expires (note that many non-food items like deodorant have expiration dates too). It can be easy to over-stockpile, especially when you're starting out, see a rock bottom deal, and aren't sure how much to get. The best way to prevent this is to pay attention to how much of a product you and your family go through, and buy accordingly. For example, if you use a jar of pasta sauce twice a month, and pasta sauce is at a 3-month stock-up price at your store, you may want to purchase six jars. If you do overbuy and realize you won't be able to use something before it expires, hurry and donate your extras to a food bank, church, family, or needy neighbor prior to the expiration date.