Things You'll Need
Credit card or ruler
Window clings are window decorations made of plastic vinyl. They are designed to stick to your windows without adhesive or tape, making them easy to use and mess-free. They come in designs for all holidays and occasions; you can even get kits to make them yourself. After a few years of use, however, window clings may lose their static and refuse to cling to windows. This does not mean that you need to make or buy new clings; simply revive them.
Spray the window you want to decorate with window cleaner and wipe it down with a soft cloth. Work out from the center, removing all dirt from the window. Window clings won't stick to a window that is even slightly dirty.
Spray a clean side of the cloth with window cleaner and wipe both sides of each window cling.
Arrange the window clings on the window where you want them. Press the edge of a credit card or ruler against each window cling and push in and down, like you're using a squeegee, to remove air bubbles. The clings should stick like new.
For especially stubborn window clings, rub the clingy side against a wool or fleece blanket to promote static cling. Also, warm the window very lightly with a hair dryer; clings have a hard time sticking to cold windows.