How do I apply a custom static cling?

To apply a custom static cling, the surface must be clean, smooth and as close to room temperature as possible. Cold surfaces reduce the cling of the vinyl. Small decals (305 mm x 305 mm or smaller) may be applied dry. Large decals (305 mm x 305 mm or larger) should be applied by wetting the surface and the static cling with glass cleaner or a soap and water mixture. For either dry or wet application, use a squeegee, credit card or something similar to smooth the decal onto the surface.

Related article: How long can static clings retain their clinging ability?