Having just returned from a trip to Los Angeles and Palm Springs that included an evening searching high and low for an address in the particularly labyrinthine LA enclave of Bel Air, I now fully appreciate well-positioned and illuminated house numbers. 
Think Geek's Solar LED Address Numbers would have surely truncated that eye-straining driving-around-in-circles-in-the-dark-in-a-confusing-neighborhood-looking-for-an-address debacle. These hard-to-miss, modern LED numbers light up in the evening for 8 to 10 hours provided that they’ve received an ample amount of juice (aka sunlight) during the day. 
Mounting each weather-resistant, aluminum number is a breeze with no wiring required. I especially like that each individual number is backlit instead of illuminated from another, possibly power-guzzling source like a spotlight. Plus, they come with a one-year warranty. But at $16 per number, things may get a touch spendy if your address just happens to be 11879448562 Elm Street. 
Via [Re-Nest]
Photos: Think Geek 

Matt Hickman ( @mattyhick ) writes about design, architecture and the intersection between the natural world and the built environment.

Greener by the numbers
Do folks (i.e. the pizza delivery guy) have trouble finding your house in the dark? Consider Think Geek's Solar LED Address Numbers.