As far as maintenance on the coop is concerned theres really nothing I do all the time or on a schedule. I kind of continuously fix it up or add something here and there. I make sure it isn't leaking every time it rains but thats about as close to a schedule as I get. I plan on getting some Food...
It's like seven dust but waaay cheaper. It's for lice and mites. I use de and poultry dust in my litter.
Forgot to mention I try to pick everyone up as often as I can to fully examine them. Some daily and some only get once a week.
My daily routine involves raking the litter and sitting down to watch everyone poop at least once. Mostly I just do what needs to be done and enjoy them, but I always find time to check everyone's basic state of health (poo) every day.