Nah, the Roman system developed from even older systems.

Before fingers

I see what you mean.

Tape your toothbrush to your mirror. Or, more seriously, put a post it note on your mirror or your soap (if it’s a liquid soap container).

This reminds me of something, though it might not be an adhd thing. Sometimes I get really into some snack or food item. So next time I get groceries I make sure I get more, extra, even. I insist on it even if I don’t eat any of it for months.