Here&#39;s what to trim that Zach Galifianakis with. The built-in vacuum swallows clipped hairs before they fly all over your bathroom floor. One quirk: the guard operates according to millimeters rather than traditional barbershop guard numbers (Start at 9mm for No. 3).&#8212;Will Welch
Philips Norelco Vacuum Beard Trimmer, $60, philips.com