How to Write a Book and Be a Mom... at the same time?

Okay, not all the kids in the photo are mine but I do have three kids under the age of six and I'm desperately trying to figure out how to make this all work.  I used to write after my kids went to sleep but three kids leave me trying to catch my breath at the end of the day and if I can still hold my head up by the time they're asleep then opening up my computer and punching out a novel (while totally fun) tends to get nudged down the priority list (below clean the house, check my email and shave my legs...ha ha ha, as if).

So what's the answer?  How do I take care of three growing kids and finish my three book series at the same time?  Oh you probably thought this was a "How to" post.  Nope, it's a question.