3. Brand names
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It really makes no sense to pony up for a more expensive brand-name bottle of pain reliever when right next to it is the store brand — same product, different label — for less. For many products, the brand has nothing extra to offer. Don’t pay for the brand. Use generics or store brands, especially for things like over-the-counter medications, cleaning supplies and baking supplies. Just read the labels. If they’re the same thing, why the heck would you ever pay more?