Collapsible holders and stands specially adapted for use with cell phones; holders, specially adapted for use with handheld digital electronic devices, namely, cell phones, MP3 players, personal digital assistants; carrying cases for electronic equipment, namely, cell phones, pdas, or mp3 players; electronic cable protective sleeves; adjustable mounting devices and kits comprised of adjustable mounting devices with bases to fit therewith, all for use in mounting electronic devices; holders specially adapted for use with handheld digital electronic devices, namely, cell phones, MP3 players, personal digital assistants that attach to bars, frames, handlebars and other surfaces of vehicles, push bars of strollers and similar structures and surfaces; leashes, lanyards, holders, and mounts adapted for handheld electronic devices, namely, smartphones, tablet computers, cameras, and portable sound and video players; holders for portable, cellular and mobile telephones; and structural parts and fittings; glow-in-the-dark visibility devices in the nature of safety markers; luminescent visibility devices for increasing visibility of people, inanimate articles, and animals in the nature of safety markers; glow-in-the-dark markers for increasing visibility of people, inanimate articles, and animals in the nature of safety markers; replacement batteries; holders and stands specially adapted for use with handheld electronic devices, namely, smartphones, tablet computers, cameras, and portable sound and video players; battery charger for use with mobile devices attachable to a key chain; stands for handheld digital electronic devices, namely, cell phones, smart phones, MP3 players, personal digital assistants, tablet computers, excluding gaming apparatus; bags adapted for laptops; computer bags; covers for smartphones; bags and cases specially adapted for holding or carrying portable telephones and telephone equipment and accessories; messenger bags especially adapted for holding laptops and electronic book readers; wheeled messenger bags especially adapted for holding laptops; pet collar accessories, namely, safety lights; flashing safety lights; safety lights; helmet safety lights; holders and stands specially adapted for use with mobile communication devices and devices for capturing digital images; cases for eyeglasses and sunglasses; clips for phones and mobile devices; organizers and supervisors for headphone cords