Just a simple example. I had to fill some holes to hide the screwhead. This is a typical application for a plugcutter, but I don't have any, and the holes are 11mm which is a weird size.
So what to do? Being a handtool junky I just scribe a circle on a piece of wood and cut it with the bowsaw. Easy peasy.
In the meantime I have installed the windows. Now I just need to do a lot of painting, not in the least painting the wall again to repair the demolition damage.