Right now, UNICEF has a project called "Tap Project." This project encourages avid smartphone users to put down their phone for 10 minutes. When you put down your phone for 10 minutes (UNICEF will time you, of course) UNICEF will donate 1 day's worth of clean water to a child in need.
No one can survive without water but you can survive without your phone for 10 minutes, so why not try the challenge? Put your phone down for 10 minutes and play with your pet, wash some dishes, dance around your house or anything else.
To participate in this challenge, go to http://tap.unicefusa.org on your mobile device. All you have to do is leave the website open on your phone and you're golden.