There's a right way and a wrong way to use blue and yellow paint. You'll get a firsthand look at the wrong way today if you help scrub the Lower Haight mural of its recent vandalism. In today's quiz, we've got a prime example of the right way.

Somewhere in the neighborhood, a color-lovin' homeowner spruced up his or her windows with this two-toned paint job. Anybody know where this is? Update 7/4: We have a winner! Facebook commenter Jeff C. was close, but Rob Brambley got it right -- these windows can be found on Page Street, just west of Pierce: Congrats Rob. Everyone else -- better luck next time!