I was going to mention this. I think it had six different grooves spiraled together, each one playing a different sound, and it was a matter of chance which one the needle fell into. Very clever.

EDIT: I misremembered. The buttons would turn the record to line up the appropriate groove. But I learned that you could get it to play a random sound by pushing the button only halfway down. That's probably what prompted me to take it apart and see how it worked in the first place.

I use a spreadsheet. Each row has the name of a chore, how often it needs to be done (# of days), and the date it was last done. Then a simple calculation for how many days until the chore will be due again. If that number is zero (or negative), it’s time to do the chore. You can sort by this column to put all of the day’s chores together, add conditional formatting to make them stand out, etc.

What you end up with is basically a to-do list telling you exactly what chores need to be done on any given day. When you finish a chore, mark it off by putting in today’s date. It doesn’t necessarily make doing the chores any easier, and of course you still have to remember to check the spreadsheet every day, but you never have to expend any mental energy figuring out what you need to do.

This was originally a way for me to keep track of those annoying chores that only need to be done a few times a year, which are easy to lose track of. But now I use it for basically everything.