Definitely routine. And accepting that the house won't always be as clean as you'd like.

Plan a weekly menu (I do it every Friday so I have my shopping list for the weekend)
Cook meals on the weekend so you just have to reheat or make quick basic things on weekdays.
Crockpot!
Load of laundry everynight so it doesn't pile up
DH HAS to pitch in. My DH actually does most of the cleaning since he has a decent amount of time home by himself before he goes to work.
Prep everything the night before. Someone even had the idea once (might have been on here) to dedicate a dresser drawer to outfits for the week so you only have to do it once a week. Not a bad idea.
Errands on your lunch break
Let it all go and rest when you need to