Ive never used a calender or anything, i dont have show birds, and a lotta times i do things on a whim. Not like id go six months between necessary feed, grit, DE...etc but i dont fret over things either. Im a technical perfectionist by nature and have to keep reminding myself this is for pleasure and relaxation, otherwise id have spreadsheets, graphs, pie charts...etc.
Another thing, when i start getting too technical, i just remind myself of the chickens on my Uncle Joe's farm in central Illinois when i was a kid...they didnt have fancy coops, covered runs, AC or fans blowing on em, and im not sure anyone scattered food for em every day. To everyone back then, the chickens were NOT pets, they were for food or eggs, and were JUST CHICKENS, nothing more, nothing less. So, i dont worry myself about mix ratios, roost height, coop flooring...etc, I normally just go with what everyone on here says to do then dont worry about it.