I'm bored of trying to find a chain lube that lasts a long ride here in the winter, all of the ones that I've tried just don't work as well as I'd like. I read about people using putolin which is designed for motorbikes, it's a wax that you soak the chain in. Heat the tin on the stove and drop chain in. Apparently it lasts ages between applications too, we shall see. The tin is massive, going to last ages!