This is an obvious point but one a lot of people find hard - completely leaving some things to DH. Completely. E.g. he does cubs/beavers admin, I am not even on the WhatsApp group/mailing list. He takes them, pays the subs, puts the camps in the diary, packs for the camping, sorts the uniform.
There is stuff I do completely as well - I do holiday clubs/school holiday childcare arrangements - again, he hasn't a clue which clubs run when or which ones I have booked until I put them in the diary and he does some drop offs/pick ups.
In general, I recommend not scrimping on childcare (obviously unless you are on the breadline and really can't afford it), I see so many people on here stressed out because they are trying to combine WFH and childcare or go for the club that finishes at 4 rather than pay for extended hours, etc. We properly outsource childcare for our working hours and we are all happier as a result. It's nicer for the kids to feel like once they're home, we are available to them.
Online groceries - obvious but in particular we have moved towards deliveries every 3 days and it makes things a lot easier to plan and less stress as there's always an order on the go.
Subscriptions - lots of our stuff is on subscription - coffee pods, toothbrush heads, you name it!
Anything that is too fiddly to iron but needs it, we take it to the dry cleaner for pressing.
Finally - we have started paying someone from task rabbit for those annoying small jobs and it's amazing. You can usually get someone for £20 / hr to put together flat pack/hang pictures/put up shelves etc.