We talked to the folks at your local malls to get the lowdown on sneaky, smart ways you can save money when shopping.

If your cart is vibrating, proceed with caution

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Some retailers are adding raised floor tiles and carpet to certain areas because they make you walk more slowly, giving you extra time to check out the goods. Studies show it can boost your spending by up to 8 percent. Check out these other 32 almost invisible ways stores trick you into spending more.

If you can, skip the shopping cart altogether, or at least carry a smaller basket

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Studies show that you buy up to 40 percent more if we double the size of your cart, because you subconsciously want to fill it.

When you find what you’re looking for, use a price-comparison app

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Apps like Shop Savvy Barcode Scanner or RedLaser will tell you if the same item is cheaper somewhere else. You can also ask the salesperson to call you if the price drops. Try these other 17 tips from people who are great at saving money.