Is there not any outlet's where you need to charge your phone? There are plenty of ways how to charge your phone without them. Here's a few tips:

1) Use Your TV

Most TV's have USB ports on them. Take advantage of them. Plug your charger right into them. You can do this with computers too.

 

2) Burn Calories

How can you burn calories and charge your phone at the same time? Use this Hand-Crank Emergency Cellphone Charger for a smooth $60. You'll probably build muscle, and be able to tweet at the same time.

 

3) Switch To Airplane Mode

This would work even plugging into the wall. It'll make charging much faster. Putting your phone into airplane mode turns off pretty much all functions on the phone. With that all being off, it charges a million times faster.