All of my power windows work fine except on the driver's door. It won't budge. What types of things could be wrong? Motor? Fuse? Switch?

Welcome to AF.

Yes to all of those things :D

I'd start by checking the fuse(s).
But usually its in the switch or its connector.

If your car is older then your motor could be faulty as well.

All of my power windows work fine except on the driver's door. It won't budge. What types of things could be wrong? Motor? Fuse? Switch?
you just need to change the window regulator inside of the door it doesn't cost that much