Almost every day, I/we learn something new. On other days, we/I learn something old, or re-learn something I/we should probably have remembered. Let me show you what I mean.
This is a scrap bit of kitchen worktop we were given which will become the sink holder for the tree bog. I made a template, marked it out, then needed to cut the hole without the benefit of a jigsaw. Thinking myself clever, I cut a 30 mm hole with a drill. The battery went flat, I found the spare battery was already flat, so I used my second drill, ran another battery down on that, changed to a 25 mm cutter thinking it was sharper then stopped when the drill started to smoke from the back end.
'Sod it', I thought, and used that saw to carry on cutting, which was Very Hard Work (even using wax to help keep the blade running smoothly). It was also Very Slow Work and I started thinking it would take DAYS to finish this small job.
Over a coffee break, I thought it might be worth using a smaller drill bit (like 8mm) to make a series of small holes that could be joined up by the saw. I tried it and did all that before the battery ran down.
I'm pretty sure it'll only take another hour or so to finish (which I'll get back to when at least two batteries are charged up). I'm also pretty sure I've been told this information before.