Grocery checkout

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When You're Buying Something Embarrassing
If you've ever bought some candy, a magazine or a collector's edition Seinfeld DVD box set to deflect from what you really need to pick up (ahem, antifungal foot cream), you're not alone: almost 80 percent of people spend money on unnecessary extras to divert the cashier's and other shoppers' attention, finds a July 2013 study in the Journal of Consumer Research.

If the thought of buying just the item you really need makes you anxious, search for a distraction purchase you'll use, like paper towels or toothpaste. It may even save you a 10 p.m. grocery-store run in a few weeks.