Turn these tips into a weekend project that'll keep the cold outside and your heating bills down. The last thing you want in your apartment is all of that cold seeping in through windows or floorboards and finding out your heat is not working effectively when you really start to need it. By following these 6 quick and easy steps to winterize or prepare your rental for the cold, you can count on being able to sit toasty in your rental, drinking hot cocoa, just as it should be.