You don't have to make over your walls in shades of chartreuse. Eliminate a source of ground-level ozone and avoid many health hazards by choosing ecofriendly paints with low or no volatile organic compounds. VOC-free paints from Yolo Colorhouse, for example, come in a mix-and-match palette of 40 harmonious hues; the company's poster-size swatches eliminate the need for sample cans. For more tips, visit sierraclub.org/sierra/paint.
(Photograph courtesy of YOLO Colorhouse)