A cell phone should never be left unprotected, as dropping it increases the chance that it will no longer be able to browse for photos of children competing in sack races or place calls to Mark McGwire. Shield this valuable device with today's Groupon: for $10, you get $22 worth of cell-phone accessories, plus free domestic shipping, from Cellpig.com.

Cellpig.com stocks cases, screen protectors, power adapters, and other tech accessories for dozens of phones on more than 14 wireless carriers. A collection of iPhone 4 cases can swathe phones in silicone or hard plastic, flecked with a spectrum of colors or constellations of sparkly stars ($9.99). Or distract strangers from the fact you’re naked by brandishing a fetching Blackberry cover design such as argyle, zebra stripes, or camouflage ($9.99). Cellpig.com also harbors casings, screen protectors, and accessories for LG and Motorola phones—including Droids—and provides fashionable armor for other screened toys such as iPads, Dell tablets, and front doors.

All products are tested, approved, and reviewed on Cellpig.com's official blog before going up for sale. Orders placed by 4 p.m. eastern time ship the same day, and live customer service representatives await all case-, screen-, and existentialism-related questions.