Tips Using DSLR outdoors in cold / winter

Had that problem in NZ, at night in the camper it was cold (<5°*) in the morning I wanted to shoot a Geysir in the sunshine, and everything fogged up.
Shot the stupid Geysir on the (lousy) cameraphone. as it only erupts once a day.

AH, how do you get saltspray from your lenses best?
Well, from the filter really, didn't want saltspray on my lens.
The active-coal lenspen doesn't seem to work on salt (marvelous for everything else though)

*silly Kiwi's, campers with a gas boiler and cooker but no heater