11. Mophie's Powerstation saves you from hunting for an outlet.

Running out of juice in an unfamiliar place is one of the worst feelings — and the most easily fixable. While there are plenty of portable batteries on the market for giving your phone a few extra minutes of life, Mophie's Powerstation Plus XL is the one to get. It charges up your phone superfast, comes in sleek designs, and is capable of charging two devices at once. But it doesn't come cheap: the device retails for $99.95 on Mophie's website.