Setting up systems that support my life have helped me.
I bulk buy the food/cleaning products we use regularly so I never run out.
Kida each have a storage drawer in the hall that shoes/hats/daily planners go in. They’re supposed to put them in there themselves, but at least it is easy for me to sling them in when I can’t be bothered to enforce it with the kids.
I batch cook a few things, so there is almost always bolognaise etc as a dinner option.
Each child has a laundry basket. If it’s in the basket I will wash and return it, but if it’s in the floor then it isn’t mine to deal with.
Older kids have spare set of bedding in their wardrobes. They change their own bedding when they see fit. I will wash and return the dirty bedding if it is in their wash baskets.
EVERYTHING that is planned is in the shared family calendar, along with who is doing it. Every school run has a parents initial next to it, every club drop off has an initial next to it, every pick up, every everything. This enables us to plan work things in advance without endlessly checking with the other parent because we can see what we’re each committed to.
Online shopping and Amazon. Endless parcels and terrible for the environment, but a sanity saver.
A shared grocery list that both parents and the bigger kids can add things to.
Bedding sets live in correct bedrooms as complete sheet/cover/pillow cases sets, along with a spare waterproof sheet. This makes it easy to remake the bed as soon as it is stripped - no more heading to bed to find it is unmade!
One parent takes responsibility for reading all the school emails/calendars/apps etc and paying/booking/saving in the calendar. This used to be more fluid, but then emails got read, not actioned, and things fell through the gaps. I do it now, and so I make it happen. Doesn’t mean I have to attend every kids party etc, but l respond to the invite, it in the calendar and assign a parent to go along (noted in the calendar).
We each deal with our own adult responsibilities. Car insurance, doctors appointments, screen wash, fuel, presents, toiletries/clothes buying etc.
There are probably more, but there’s a starter!