If you are out with friends and don't have anyone to take your photo for you, you will need to take a self portrait. Instead of fumbling with a self timer, most people hold the camera themselves and take a snap. Unfortunately, these photos are hard to center and you often cut people off and lose what could have been a great shot.
If this happens to you, check out this tutorial. In it, you will learn how to modify your digital camera with a super cheap mirror so that you can take awesome self portraits. This cheap, fast and easy method will help you get awesome shots every time!