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Scrutinize Offers

This one doesn't just apply to buy one get one free offer, but really to any type of offer, a store is running. It's always a good idea to check and see if you're going to save money by buying a certain product or if there's a cheaper option available. A lot of times, it might just be cheaper to buy a generic version of the product, especially if you're probably not going to use all of it.

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Sometimes these deals also tempt us to buy something that we otherwise wouldn't even consider buying just in an attempt to get a good deal, so it's always worth taking a second to scrutinize these types of things.