Just because the artist is you doesn't mean this is any less important, but many people working alone seem to forget this. The ultimate goal is to capture a great performance. All the techy stuff in the world won't matter if the performance is lame. Most solo recordists end up doing all their work in the control room, right next to the ambient noise of their computer, hard drives, tape decks, amplifiers, and other gear with built-in fans or noisy moving parts. Take a look at your rig.
Remote controls allow tape decks to be moved away from recording areas.
If I'm really being down and dirty, I'll just throw heavy blankets over the rack to deaden the noise. Turn it off until it's needed. If you're using directional mics, make sure you're positioning them to take maximum advantage of their noise rejection abilities. This may require slightly repositioning yourself and your gear for best results. Set your record levels very carefully, allowing for the fact that most people play a bit louder once the record light is glaring at them.