Its not too dark yet here to commute both ways, but when the clocks change and the days get shorter, either I'll bike in and then hitch a ride home with hubby, or if I need to take the car for some reason he'll ride in and hitch a ride home with me. If we both need to go by car we'll carpool. 1/2 a workout is better than none, and we have a gym at work so if we are commuting less by bike we'll spend more time in the gym. Our climate is mild, so club rides go throughout the year. Usually arm and leg warmers and a wind vest are the most we need, occasionally long fingered gloves, ear covers, and a windbreaker if its very cold or windy out.