Storing ice cream in a Ziploc bag will supposedly keep it soft, and 29 other lifehacks you might not know

Ice cream.
(Image credit: iStock)

Lifehacks are everywhere, but do they actually work?

In this week's video from our sister site Mental Floss, author John Green puts 30 lifehacks to the test. Some of them are successful — making a cupcake sandwich does, in fact, work pretty well — but others don't pass the test. Using a wire hanger probably won't help you open a bottle of wine, and shaking your earphones won't untangle the cord.

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Meghan DeMaria

Meghan DeMaria is a staff writer at TheWeek.com. She has previously worked for USA Today and Marie Claire.