I see everyone beat me to it, because I do the same thing Diggs did. The old Windows Movie Maker, but once I found the free DaVinci Resolve I switched to that and never looked back. The latter wound up doing the audition videos for my daughter's band assignments this year too... which turned into 180 students worth of parents asking me to cut their videos for them to save the director time.
I noped up out of that one though, that's a BUCKET of work, not to mention CPU time, and of course no one wanted to pay for it.