We shovel snow oout off the driveway and off the sidewalks, cuddle up next to the wife or girl friend by a warm fire with a suitable adult beverage, and watch good movies. When that loses it's luster (almost never happens but...) we fly a simulator. About a month or so before flying season we start ordering up parts for the next plane we might have in mind. Since we know we can get the next plane together in a couple weeks or less of evenings we worry about a new plane shortly before flying season.