Nice list of advice

I'd add, not having a long commute like yours, I never feel like I have to not ride in. At first there were days, and I strongly agree that when we're not feeling it, don't. I reached a point where it is easy enough, and under 8 miles each way short enough, that in the worst weather I disliked driving in it, in this traffic, more than the unpleasantness during a 30 minute ride. So I always wind up riding.

But the wisdom in that is to always leave it as a choice, without feeling you have to do it. Or not do it. Even choosing the ride 99% of the time, I always reserve the choice not to.