Cleaner once a fortnight.
Housework is quite shared with DH.
Keep on top of washing clothes during the week, and drying them - but we only fold once a week (if clean things are needed before then, we rummage in the "clean clothes hamper" downstairs). Folding is done while watching a movie so not so much of a chore.
Big family diary on the worktop.
Paperwork gets dealt with quickly - items completed go into a basket until we get the energy to file (about once a year!) but don't go into the basket until they are done, they're beside the diary to get done first.
Lists - to do, paperwork, annual budget on excel, birthdays etc in the diary...
I keep books of stamps on the fridge to send off cards and pay bills quickly. I also keep stocks of cards that I'd use regularly - thank you notelets, a few ages but mostly generic boy/girl birthdays, some anniversary cards and sympathy cards etc.
Stock of boy/girl/baby/wedding/Christmas wrapping paper as well, to put things together in a hurry. And always plenty of sellotape (TM - other versions of tape are available!! But I have never been let down by sello).
Double batches of dinners and freeze the second half - for easy dinners on nights we are running more than usual.
Good jars of sauce to make fast dinners, and various other "dinner in 20 minutes" recipes (pasta carbonara, chicken quesedillas, nasi goreng etc). Prepping the evening before if I know one night will be worse than another (peeling potatoes, thawing/dicing meat, chopping veg, marinading anything needing it etc).
Good stores cupboard/freezer that I can make 101 meals from tins and packets (slight exaggeration - but I can do a good few weeks) if I don't manage to get proper food shopping.
Food shopping lists on the fridge door - everyone knows to add on items that they have just used the last bit of (preferably BEFORE they actually finish it!) and anything they particularly want the following week (eg. knowing there are school trips coming up, maybe need extra crisps or dried fruit, or bake sales mean more eggs and flour).
Grocery shopping online frequently, especially if we will be away or particularly busy with events - sometimes it's for delivery and others "click and collect" to suit diaries.
Annual bills like insurances etc are in my budget excel workbook to remember
Lots of bills are now DD
Holidays tend to have online bookings
Putting a wash on most mornings, that is done when we get in at night to put on the clothes horse overnight if weather not good for outdoor drying. Using the tumble dryer as much as necessary.
Dishwasher ditto.
DD sorts a lot of her own gear for activities - but we all tend to pack in advance for activities and travel. And use lists for this as well (not necessarily to get packed, but once packed, any items for last minute go on a list to grab so we don't forget).