There are easy ways to stop drafts in your home. These photos show a range of places where air typically finds an easy way to draft into your home. Any cracks or holes through the walls, floor or ceiling of your home are offering easy access for air to infiltrate your home. Seal these up with caulk or expanding foam (eg: Great Stuff) to help reduce drafts in your home. When sealing walls, if you can, seal them up from the outside to stop air from getting into your wall cavities.