My first power tool was a used Skil corded drill. Back then, I was a poor college student, and cordless drills were extremely expensive and the batteries were awful, so this drill just made sense. When I was living in my first apartment, I used it to attach a 2×6 to the frame of my window so I could mount an air conditioner in the window. I still remember cutting that 2×6 to the right width with a rusty old hand saw.
What was your first power tool? How did you get it? Why did you get it, and what was the first thing you used it for?