One of the first commercial clips, the original shingle tab is a sturdy plastic clip that is used with C7 and C9 cords and bulbs. Each bulb is installed through the clip into the socket. See them on this page: http://www.christmas-light-source.com/Christmas-Light-Clips-and-Hooks_c_128.html
Aside from throwing dinner parties that feature at least two kinds of cheese dip, Shellie's passions include travel, Mid-Century Modern furnishings and finding the perfect street taco. Has been known to snort laugh champagne.