Yeah, that transition from thinking about how much further there is to go, and forgetting all about it, is a great one. Here in Phoenix, we have the opposite issue. I started commuting last spring, and when I started investing in 'stuff', my wife asked "Shouldn't you wait until you see if you can ride in Summer before buying stuff that will sit around?" I told her I needed to ride through the spring to even -think- about riding in the summer, but if I did, I'd keep riding in the heat. I told everyone that 110* would be my limit, but ended up never driving because of the heat. Thought I would die at 115*, but I made it and have never looked back.

I know it is really tough in the winter cold climates, but I think that, in both extremes, the attitude that works is "Weather is never an excuse to drive." I drive only when I have a doctor's appt or something like that. And to make the day reasonable when that happens, I buy a dozen donuts for the folks here. It's ironic, because, since I bike, I am the only one that can really afford the calories. :-)