Just recently, we had an opportunity to try out the Command Outdoor Light Clips. They seem to be well-made and capable of supporting strings of electric lights, such as the accent light strings that we use. One of the best aspects of these is the fact that their removal leaves no damage to the mounting surface. Also, they are re-usable, since you can simply purchase refills of new adhesive strips. The 3M company provided me a free sample of this product to evaluate.