Ideas that come to me while I'm driving

So am I in a quandary or do I have a dilemma? Most of my free thinking time occurs while I am driving to and from work, but it is VERY BAD to type blogs on my Blackberry while I am driving, so what to do? I have reverted to sending myself short reminders via the Blackberry that will remind me of the idea that I had, and then I get to a computer and type like a madman. I might need to reserve time on the weekend and limit my blogging - though I am enjoying it, very therapeutic...