Decorate your Christmas trees with just 3 easy steps this holiday! Step 1- load your lights. Step 2- attach the elf. Step 3- hang lights. It's that simple! The ELF is a patent pending innovative solution for the challenging task of decorating trees with holiday lights. Just about everyone loves the look of trees glimmering with lights to celebrate the holidays or special occasions. However, nobody loves the time and effort it takes to install them with conventional products or methods.