I have a 1991 Honda Civic DX sedan. On cold days (below 5C/40F) I cannot remove the key from the ignition after the car has been running. I live in Canada, so this makes for a very frustrating driving experience from November to April. A friend of mine has an Accord of similar vintage, and has the same problem.

The only solution I've found is to heat the ignition for a couple of minutes, either with a heat-n-strip or a Bic lighter. Anyone have any thoughts on a better solution (one that doesn't risk setting fire to my car or making me lose my fingerprints)?