Sponsor: Warby Parker's Guide to Impostors

This guide is sponsored by Warby Parker, which sells $95 glasses with prescription lenses included. Check out their Fall 2013 Collection for some last-minute costume inspiration—in the right frames, you can be quite a fright. <imgsrc="https://warbyparker.sp1.convertro.com/view/vt/v1/warbyparker/1/cvo.gif?cvosrc=display.longform.halloween" border=0 width=1 height=1 alt="">