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The One Thing You Should Do the Next Time Your Phones About to Die

When your smartphone battery starts to drop, every percentage point you have left counts. Good thing there’s a really easy--and sorta pretty--way to keep that dwindling battery alive just a little bit longer.

What you need: Your iPhone (although this trick actually works on Android devices, too).

What you do: Go into your smartphone’s settings and tap "General," then "Accessibility." There, toggle on the option labeled "Grayscale." This will switch your phone’s color scheme to black-and-white. And since it takes less energy to illuminate a colorless iPhone display, you’ll buy yourself some extra juice.

OK, but how much time will I get? About 30 additional minutes. Just long enough to drive home and beeline for an outlet.

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