How can I effectively apply contact paper to a surface?

To effectively apply contact paper to a surface, first clean and dry the surface thoroughly. Measure and cut the contact paper to fit the surface with a slight overlap. Peel off a small portion of the backing and slowly smooth the contact paper onto the surface, using a squeegee or credit card to remove air bubbles. Continue this process, smoothing out any wrinkles or bubbles as you go. Trim any excess paper with a sharp blade for a clean finish.