When's the last time you saw a carpenter use a hand saw? Candid camera was a great show, I loved it as a kid. They had a lot of good stuff.
There's one hanging on the side of the camper shell on my work truck that I use quite often, though not regularly. I can whip it out and do a quick cut before I can plug in my circular saw. I used to carry a battery-powered circular saw, but the batteries died and I haven't replaced it, so the handsaw gets the easy jobs.