While I'm a SHAM now, it is only a recent development.
DH is a shift worker, so the load was mine. Because I was working regular hours a routine was easiest. On the OT/weird hour days you just do your best.
Like Divvy I had a fairly strict routine. I also reassessed what needed to be done as opposed to the perfectionist view of what should be done.
With DH the fulltime worker now he does bathtime with the kids when he is here, that gives me time to cook dinner/cleanup/spend some time on the lappy.
I preferred to get up a bit earlier to do a few jobs than stay up late (funny how that is totally the opposite now). The gym was my time. At night DH and I sit together. We might be doing separate things (like me sewing or crafting or surfing the net and him on the PS3 or watching telly), but we're together. Sometimes we don't even talk lol. We've had many chats in the wee hours of the morning, but they're the ones we treasure - that's what works for us.

I'm really glad you got your job babe. I know it's something you're worried about, but don't stress to much. It has a way of working out. You will also appreciate Shell much more because you already know what it's like to SAH, so it's not taking advantage.