I keep my paperwork in my (waterproof) jacket pocket. I carry an original insurance slip (I have 3 copies) and a photocopy of both sides of the ownership. Cops don't have to like the photocopy, but can only issue a 24 hour notice of infraction - giving me 24 hours to get the original ownership and present it at the police office. This prevents someone from forging my signature and transferring ownership if my jacket is stolen. Never been asked to produce paperwork as the cops can look it all up on their computers these days.