A regular on HGTV’s Mission: Organization, proprietor of apartmenttherapy.com, and author of the new Apartment Therapy: The Eight-Step Home Cure, Maxwell Gillingham-Ryan specializes in transforming cluttered apartments at low cost. For a base consultation of $550, Gillingham-Ryan interviews clients at home, then draws up what he calls a “prescription.” “He’s very clever and efficient,” says Mary Hayes, an aesthetician who’s installing a mini-salon in her Soho one-bedroom. “He used what was in the apartment just by rearranging and adding some items. It wasn’t an entirely new makeover—my place was just in need of something that I couldn’t figure out myself. For the first time, I really feel like my apartment is set.” And her bank account remains intact.