Litter trays every other day and full clean every 4 days. I work on a rotating basis. So day 1 and 3 do the litter trays and day 2 clean the cage, but they have they odd numbers on the same day, but some are on day 1 when others are one day 3.
Sometimes I have to slip an extra day in though, like if the weather is awful and cleaning them would mean they are wetter than before, in which case more days get added in, so litter trays can be every three days, and hutch cleans every 5 or 6 days.
All very complicated but it works for me, lol.