Taking a cue from hotel-room luxury, customized coffee systems are popping up as a must-have in the study, the bedroom and yes, even the bathroom. "A cappuccino maker in the master bath makes perfect functional sense," says Mick De Giulio, president of Chicago-based de Giulio Kitchen Design. "It's all about convenience: Many of our clients wake up early and enjoy starting their day in the master bath suite." Products like the sleek Miele CVA4075 built-in coffee/cappuccino maker conveniently connect to the plumbing so that you can enjoy your first morning cup of Joe (think freshly ground beans and frothy clouds of milk) without ever going downstairs. —Vivian Vassos