To people that don't have kids, working PT from home sounds like a great idea. Those of us with kids know it would be more work than actually going to the office.
Imagine doing a teleconference from home only have "Mommy, lookee!" come from behind you b/c the kid drew on the wall with crayon while you were out of the room.
Like Michelle said, day cares are totally hit and miss. We got damn lucky with the one we found. Most of the good ones are so expensive, you actually MAKE money by not working. If my wife has a slow week at work, we only break even on day care. If she only works 3 days, we LOSE money. My family is nearby (as in 20 minutes away), but they can't just "watch the kid." My dad has had two stroke, my mom works 3 jobs and my brother is, well, not the most reliable sort. You can't always count on family to help, and sometimes the goodwill of their helping wears thin VERY, VERY quickly.
As soon as we can afford to not have two incomes, Nessa's probably quitting to be a stay at home mom, too.