No need to reinvent the wheel, folks. Just take your advice from Mystery Inc.!
DOO: Wear something shapeless. Leave as much to the imagination as possible.
Source: fanpop.com
DOO: Wear something you can run around in. Mystery solving can take you places you never expected to go, like "sweaty."
Source: fanpop.com
DOO: Be as sassy as possible if you're a ghost.
YOU'RE A GHOST. WHY WOULDN'T YOU BE SASSY?
Source: fanpop.com
DON'T: Wear blue-tinted glasses, because what if you wanted to see in reality-vision?
Source: fanpop.com