Everyone does winterizing
their own way. I agree with Don about hiring your pro's to do it for you the first time with you looking over their shoulders and asking questions. Then you'll be confident to do it yourself the next time. I also think that it's wise to take as much as possible off the boat over the winter. To me, that includes sails, sail covers, bimini, all bedding, all portable electronics, binoculars, cushions, etc., that you have room to store in a warm, dry place. With your boat closed up for months over the winter, none of these items will be enhanced by being left on your boat, and some might deteriorate or mildew. Finally, they present the possibility of being stolen. Leave your dishes and glassware, and similar "hard" items on board. You probably can't take your bunk cushions home due to their size, but I suggest you turn them vertical and open all, and leave open, all the lockers under them to encourage circulation. I also like to leave all my seacocks open over the winter (but close all but the scuppers just prior to spring launch). While your winters are probably about the same as mine, I recommend using (or telling the yard to use) the best -100 degree antifreeze for the engine as it will mix with some residual water in the waterlift muffler and exhaust. While warm winters have been common here, very cold ones are still possible. The -60 or -50 stuff is ok or the fresh water system and head.Finally, try to visit and open up your boat at least once a month over the winter. Not only it this a good idea to make sure all is well with your beloved boat, it's fun: bring along a hot lunch and some coffee and listen to some music in the cabin -- while thinking of spring.