Sounds like you've already made your mind up then?
The OP is asking for SAHP routines, not wether she should do it or not.
I am a SAHP and I love it.
I'm not overly concerned about housework and "house admin" (still not 100% why that would take up so much time anyway with what it entails) I didn't take time out of my career to be a maid, I took the time out to spend with my son.
I don't like a set routine as such. He's up at 06.30 and in bed for 19.30.
I think it's important for us to do something a little different each day, so not the same things two days on the bounce
We go swimming to a ducklings session 2/3 times a week - will not miss these, he loves the water.
We go to an arts and craft session once a week
There are lovely playgroups in our area, I choose one a week depending on our schedule. We could go to a different one everyday if we wanted but so long as it's not tipping it down with rain, we are normally outdoors.
During the summer we have been out in the forest, different parks with a picnic, ball, bubbles, golf clubs, skittles, Walks on the beach, basically anything outdoors where he can experience stuff and have fun.
Once the weather turns and it's a bit too wet, we do more sessions, he is booked for diddi kicks and back to diddi dance.
He has started a little crèche for 1 hour twice a week while I nip to the gym. He is just turned 2 and this is the first time he has been left without me.
We prefer to be up and out, so as soon as breakfast is finished, we are out. We are always back home for 15.30 at the latest as we all have our tea at around 16.45.
You sound like you have it all sorted, a job you can go back to in order to secure your financial stability and the joy of spending time with your little one, then you husband can have the same opportunity.