One good reason for keeping a camera on you at all times is that you just never know when a good photo opportunity will arise. Sometimes it might be a beautiful sunset, other times it might be an uniquely-colored Volvo. Who knows? Sometimes you might even see a rubber ducky flash mob.
The point is that fun photo opportunities are all around us. Use your camera phone. Use your point n' shoot camera. Just use it and have fun. You'll be glad you did!
