I don't normally do this in the other seasons, but I occasionally spray some WD40 on cable housing or anything else that tends to freeze up.
Unlike tsl, I don't clean my bike twice a week, but I have been in the habit of running my bike through some snowbanks to get rid of any salt, then bouncing the tires a couple of times to shake any slush off, then spraying with one of my water bottles. Follow that with any lubrication you think you need.