I started using the first letter of the thing I am iterating over. This is particularly helpful with nested loops so I can easily remember which index variable corresponds to which thing.

I dunno why, but I have always used x, y, z for my generic for-loop variables.

I'm honestly prefer short but (usually) complete words. Somewhere along the line I realized that being explicit really helps when you need to change it later.

don't mind i but personally always use index or x, y, z for games

I thought it come from mathematical sequences, but actually it doesn't. My best bet is that i is the shorthand for index

Well. I guess I'm then a some kind of heretic then. 🤷

When my brain doesn’t work I’ll resort to naming them the single of the plural. Like keys turns into key when i don’t wanna call it “objkey” or “outrageouslylongnamethatmayormaynotbeafittongwordtodescribeakey”

chuckles in Python