Write it on the back of your hand, duh. Just don't sweat and wipe your forehead. Honestly though after a few more trips you won't need a map at all. That's part of the fun, you don't have to ride like a car. Maps? We don't need no stinkin' maps. As for your braking issue, always apply that rear first even though most of your braking power comes from the front. Lock up that front one without touching the back and you will likely go flying over the handlebars!