It's been blustery in the Chicago area, and lots of people are experiencing lock freeze, especially on their cars. I see a thread in chi.general where several are recommending graphite. (I lurk here, so I don't believe in graphite in locks.) Using the alcohol-based "lock-thaw" products gets them usable, but though logically the alcohol should get the water out and keep the lock from refreezing it doesn't actually work that way.
Suggestions, please, especially those one can use in a parking lot 4 miles from home, but things we can do before leaving the house are also welcome ideas.