Washing machine on every evening after all showers are done. Hang stuff on radiators as soon as washer is finished.
Take stuff off radiators in the morning.
Have laundry baskets for whites and colours... train everyone on how to use...make it someones job to bring fullest to the washing machine and load it it.
Meal plan and shop on line for it all. This has cut my shopping bill but 2/3rds.
I know what we are having every evening, take stuff out of freezer the night before bed.
Whoever gets in first starts the cooking...slow cooker is a GODsend!
Load dishwasher as you go along. or put into sink full of washing up water.
Give different people jobs to do..empty dishwasher/sort out rubbish/recycling etc every day.
I do ironing (minimal) on a Sunday and lay out the entire weeks school uniforms including socks & undies so no need to lay out each evening.
Calender/diary on the kitchen wall, so every knows where they should be on any given day.
Clean as i go, while kid is getting uniform on & cleaning teeth i run hoover over and tidy.
Pile stuff on stairs that need to go up..never go up empty handed..train everyone else to never go up empty handed.
There is no getting away from it, its hard slog!