But I've found it's just not that consistent for it to work in some of these cases.
I sometimes order 2 boxes of litter a month, and sometimes don't order any.
Now if you are talking about something which will measure how much I have left via a scale or some other method and reorder when I'm low, I'd love that! I'll need to see if I can grab another ESP8266 and some load sensors and set that up!