Agree, challenge boss first. He can't just say 'because I feel like declining your request' - he has to show business reasons
Also
get a cleaner, agree
make sure your dh does half AT LEAST of everything so that's cooking, shopping, taking responsibility for running your lives because it's all those small things that take EFFORT, like remembering outfits for school/sending money for raffle tickets/buying presents for teachers, that's the exhausting stuff imo
Pay all bills by direct debit
when post comes in either shred and/or bin it, file it or action it, don't let it build up
shop online, ideally getting it to arrive when the cleaner can put it away
meal plan, know what you're having each evening and take it out of the freezer in the morning if needed
Prepare clothes the night before for everyone
make lunch the night before if you take a packed lunch
I do my make up on the train and sometimes take it off again on the way home too
You can clothes shop online too
And agree, I get to work at 8.30 and leave dot on 5pm (I am a contractor though so it's slightly different but hey, you know your long term career isn't with this company so it doesn't matter).