Yes I have to agree not everyone can express I couldn't
My granny used to say "The floors will be there when the wains are reared." It is true absolutely! Wish I had not put so much pressure on myself at that time.
In terms of "throwing money at the problem" if that's an option available to you, there's not only cleaners there's ironing services, or full on laundering services (I used to work for one of these lots of pensioners as well as large hospitality companies use these) they collect your dirty laundry, wash, dry, iron and fold and even hang (shirts etc) the clean laundry and deliver back to you for a fee and from what I recall - and I've just checked locally and see it's still the case - it's usually pretty reasonable, less than £20 per load here, and often within 24 hours too.
Even if you only sent yours and his laundry and kept the baby's to hand I'm sure it would help, or even if you only used for 'linens' - bedding, towels etc
From watching USA tv shows and movies it seems fairly common there to use such services for shirts in order to get the shirts pressed, starched and hung.
I was in the office but I'd wander into the shop floor and they had contraptions shaped like a flat "person" which pressed and hung shirts etc using blows of steam in like 3 seconds per item! Genius stuff!
Definitely agree with getting groceries delivered - hell get everything delivered!
Even if you (both of you) still want to cook at least the evening meal, make them simple but nutritious - fresh pasta with pesto and salad, stir fries, freezer to oven jobs but with some veggies done in micro, take turns to batch cook possibly using slow cooker stews/casseroles/curries and freeze the leftovers so you've got "home made ready meals"
Given what you've said about time to eat/losing weight consider easy/quick but again nutritious options like soup (yes home made ideal and can be batch cooked and frozen but bought fresh or even tinned better than nothing, add cream and bread of some kind to bump up cals) smoothies, cereal (so many times I had cereal as a quick meal when dd was little), sandwiches made the evening before and stored in fridge - oh could make for you at same time as he makes his packed lunch as pp said.
Also things like pre-prepared or grab and go fruit and veg, cheese portions (baby bel that kinda thing), deli meat...
I wonder also if you're "tidying" all day - even I didn't do that! Left it all till 15 mins before exh was due home then flung all dds toys etc in a crate thing we got and used as a toy box, flung any laundry in laundry hamper, dishes in sink and anything of mine or exh (rare he left stuff lying to be fair) in a crate we had "live" at the bottom of the stairs in the daytime and took up with us when bathing dd (took turns, this was one of exh favourite jobs), then once dd was in cot/bed pottered putting that stuff away which also meant she heard we were still about (that's a whole other tale!)
As we're all saying - lower standards/remove the perfectionism.