BONUS DAY: Mercury Insurance billboards...

Mercury Insurance great agent billboard
Daily Billboard thinks that Mercury Insurance's current ad campaign is simple and effective.
Mercury Insurance switch save billboard
The billboards stand out not only because of the bright egg yolk colour, but also due to the use of some clever copy.
Mercury Auto Insurance billboard
Daily Billboard especially likes the sentiment of the 'Get a great agent. Not a great telemarketer' creative, but wonders in this age of overseas call centers and scripted, standard answers, if the service actually lives up to the promise.
Mercury Insurance cash billboard
Regardless, the ads do a great job of the communicating the savings you'll apparently enjoy if you opt for Mercury Insurance Group.
Mercury SoCal Insurance billboard
These insurance billboards were snapped along 3rd Street, Wilshire Boulevard, Hollywood Boulevard and Sunset Boulevard in L.A. on January 12 through January 16, 2012.

For more examples of billboards with no images and a great use of copy check out these Chipotle Mexican Grill billboard ads.
Mercury great agent billboard
UPDATED: One more billboard from the campaign, this one about roadside assistance, snapped along Vine Street in Hollywood on February 12, 2012.
Mercury Roadside assistance billboard
UPDATED: Here's another billboard in the Mercury campaign snapped along Ventura Boulevard in Sherman Oaks on February 23, 2012.
Mercury Good neighbor billboard
UPDATED: Enjoy two more ads from Mercury Insurance snapped along La Brea Avenue and Highland Avenue on March 7, 2012.
Mercury policy billboard
There seem to be a never-ending supply of creatives for this copy only campaign, so I'm sure we can expect even more versions in the months to come.
Mercury mayhem billboardUPDATED: Here's a new creative from Mercury which seems to poke fun at its competitor Geiko, snapped high above Wilshire Boulevard on May 6, 2012.
Mercury Insurance gecko billboard