I think many posters have already covered the DH element of this issue. Something needs to change there in terms of workload at home.
DH and I both worked full time with DS1, I’ll be going to three days when I’m back from maternity alongside studying part time. In terms of what worked for us last time:
. Robot hoover
. Get DC involved in cooking as early as possible, even if it’s just sitting in their high chair with a little pot of cold water and a handful of pasta, or better yet get them baking snacks with you for lunch. I used to make banana bread with DS at that age, it doubled as a sensory activity with him squishing banana and feeling other ingredients. We’d do it on a Sunday to have snacks for the week.
. Try to tie in things you have to do with the DC, so if you’re cleaning the living room toss them a cloth and a spray bottle with a tiny bit of water in it (or a baby wipe!)
. The slow cooker was the best thing ever to streamline cooking. Bolognaise, sweet and sour chicken, Thai curry, macaroni cheese all work well for us. The taming twins website has some fantastic and really simple family recipes.
. Tesco shop delivered every week, two week meal plan rotation so you can add straight away from your last order.
. TOMM - we both have the app and tick off jobs we’ve done. It keeps the house hygienic though not immaculate. There’s a Friday focus with a specific room we’d declutter which is good, less stuff means less to tidy away. We probably do an hour between us a day of cleaning. It’s give and take, I may be up earlier one day and do most of it, or I may take DC swimming and DH will do some jobs.
. DH does washing. For DC we have an outfit on a hanger for every day of the week with socks pegged to the hanger so you just grab and go. No faffing looking for bits.
. Plan ahead. I use the structured app, it does make life easier. I sit on a Sunday evening and plan out the week. DH and I try to allocate specific time for us as individuals and a couple.
. Getting out a few times a week, park, soft play, I used to pop DS in the carrier for a big walk, meeting a friend.
. Pre written birthday cards done the first month of the year to post when needed.
That’s all I can think of! I agree with not cooking lunch. Just try to make life as easy as possible. An hour of TV won’t hurt anyone if it helps get bits done.