We have something very similar at work, without the nice set.

who are you who are so wise in the ways of science?

That is a such a fantastic idea. I will start just taping these things into a little nook going forward. Surprised Ikea hasn’t done something like this

Yup for the more complex programs renaming is essential

I deal with a code base written in the 90s in a language similar to basic. All the 3 letter variable names drive me crazy