Lol -- maybe "just" clean and cook in the first couple months of a kid's life. Babies are easy. I have three kids, ages 2, 3 and 8, and it's a lucky day when they allow time for cleaning and cooking. These kids are just learning and developing so fast, they're running high-speed all day trying to take in everything they can. They want to learn, they want to find their place in the dynamics of their family and their world, and they want guidance and cheering on through the process. At the same time, they want someone who will clean and kiss the inevitable boo-boos along the way, monitor sibling squabbles so no serious injuries result, and so much more. At the same time the 2-year-old wants to know what will happen if he sticks a shoelace in the light socket, the 3-year-old wants to know everything about the airplane she sees going by and the 8-year-old wants to know how to start building robots. They don't take naps anymore, so it's non-stop from 8:00 in the morning until 10:00 at night (if you're lucky), then of course there's "night call" for nightmares, sudden needs that crop up in the middle of the night, and any other reason they can think of not to sleep. There are no weekends, there is no clock-out time, and there are no sick days. In all this chaos, yes, the cooking and cleaning still need to be done, and it's shocking how many muddy footprints, dirty clothes, dirty dishes, and of course dirty kids needing a bath crop up during the day.
I'm sure I'm missing some things, but I certainly have nothing but the deepest of respect for my super-hard-working husband, who is the awesome "stay at home mom" in our family. He even manages scratch-cooked meals almost every night. He does it so that I can pursue the business I'm passionate about, and so that our children always get the best care and one-on-one direction that we can possibly offer.