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4. Post-it Notes
Best places to buy: Dollar Tree, Dollar General. Average product price: $1 per pack*. Post-It Notes have been used for years, but most people peel them off the pad from the bottom up. This is the easiest way to grab one, but it is not the best.
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Post-it Notes ©Siyanight/Shutterstock Peeling from the bottom causes the note to curl and lose its stickiness. Instead, peel from the side to keep your note flat and sticky, so it stays where you put it.
