It's a cliche that filmmaking is a team sport. However, let me say just say it again: filmmaking is a team sport.

Basically, if you shoot your own stuff, you can just pick up a camera and some wireless microphones, grab a couple of LEDs, and you're off and running. And if you don't shoot your own stuff, you can just grab one other person to do camera and you can learn how to do the sound, and you're off and running.