Skate your way through winter. Keep a bag with skates and helmets ready to go. Bring them to school when you pick up your kids. They are already dressed for winter and ready to play. If you live where it gets cold you can often find lots of free outdoor rinks.
Outdoor picnics are a family favorite. Turn any day into something special. In the winter a thermos with hot chocolate can turn any walk into a grand adventure. No need to go far, a picnic on the front lawn under a tree will surprise even your biggest skeptic. It is a nice way to be really connected and share a meal.