When I was in highschool, I did some construction. I remember dragging an air compressor and/or generator out to job sites. Though I work in an office these days, I have a ton of cordless tools that make life so much easier. Now that I live on a 3acre yard, not having to drag an extension cord (or 3) out is great. My corded oscillating tool stopped working this summer and I bought a ryobi one. Didn't expect much but it works surprisingly well. I will say that some tools just haven't been replaced with batteries just yet. There has been no battery circular saw that seems to work well enough for me.
My cordless impact is probably my most often used tool.
