push your winter workout

Are you like me when planning you workout and say one of these two things?  I will ride for an hour.  I am going 10 miles.  Well, you might say a third; I will ride to a point and turn around.

With winter snow and ice I do inside training and i find it hard to maintain time in the saddle.    I do like to watch football and basketball games. I found a way  to motivate me and that is to ride until half time or the end of a quarter.  The nature of those games is that you do not know exactly how long you will cycle.  I like this because when  I ride in a new area I do not know how long it is to a destination.

I am pleased with this new aspect of my inside workouts, because it has motivated me.  I want to be ready to hit the road once the roads clear up.

What suggestions do you have?