I have one of those Flylight zip-up map boards (open cockpit y'see). In it I keep (visible): Chart covering the intended route (with a big WIND arrow drawn on), destination field plate and plog. tucked in behind the chart I stow some pencils, a ruler, diversion field plates and a derigging aide memoir in case I have to leave the aircraft somewhere overnight or even trailer it home. I also carry a little bag under the seat containing a tie down kit and a penguin biscuit.