I rarely have problems with motivation because I love riding the bike. However, I'm with both rjkresse and rykoala. I rode to and from work on the worst day of rain and flooding in NYC, where the conditions were so bad that I broke a spoke and sprung loose my cyclocomputer transmitter (on different wheels no less). That ride will make most of the winter feel easy! Every once in a while a ride like that stays with me for a while, providing additional motivation. Also, being one of the few if not only riders I see pumps me up like nothing else. I think of Lance riding to some insane spot in the dead of winter, pausing at the top to take out the cell, calling Jan to ask, "Guess where I am?"