Thanks for all the good responses! I have my wife on board (that is to say she wants to be on board but is afraid of the time). I hope to be able to start commuting twice a week and after we see how it affects the schedule move up from there.

It will add an extra 20 minutes to my commute both ways. That is not a significant amount of time but it is during "Prime" hours. I would leave sooner so I can't help with breakfast as much and I'll get home later so my help with dinner is stifled. I usually get everybody up and feed them before I head out, and it takes two of us to watch kids and make dinner. We usually eat fairly early because bed time comes early.

I'm not trying to be all whiny pants about it, but we have had a pretty solid schedule for a few years, I was able to fit my biking in before but now it's a little tougher. Here's to twice a week!