I don't think single dose would work, or I'm right back to, did I refill it or did I forget to... But I could put the whole day's medication in a container, then all I need to do is count back from three. Since now that you mention it I do remember setting up "Grandma's Macala" when I was a kid (2-3yrs old then my mom found out and nearly strangled her mother)
But she had a little plastic container with days and times, more advent calendar than macala, but that's what she called it, had to help her set the board but we never played.

now I understand why my mom was so upset, 2 yr old handling cortisone, anti-depressants, heart medications and whatever else she was on was prolly the equivalence to giving me rat poison to play with... Just don't eat it!
I do need to find one of those containers though. That would certainly make things sooo much easier. Thanks doydie