Many thanks for the painless introduction today. I wound up taking 20 sets of measurements over a 10 hour period. It was incredibly easy to do.
For the first time, I saw how my numbers spike after taking drops and then shortly after start to drop. It was great to be able to actually see this.
I expecially appreciate your remarks about turning it into something fun. My first microscope was like that and while this is much bigger, it is every bit as much fun. Maybe more.