I use the same routine any time I'm on the bike (bike paths mostly). I prepare routes on BaseCamp, using free OpenSource maps, and download to a Garmin 64sx mounted on the handlebars. Two Eneloop rechargable AAs run for a day's touring, another pair is backup, and a small wall charger keeps them full. Actual travelled routes I save daily on the GPS to upload to BaseCamp when I get home. And a Cateye odometer, to keep the GPS honest, as well as a cell phone which I use to find a meal or supplies. I've never asked the unit to plan a route, although I can see how that might be wanted in other circumstances. Finding road routes for biking is an issue I avoid because I avoid major roads. In the car I use a Garmin DriveSmart 50 and ask for a route when setting out, but I always examine the routing possibilities in BaseCamp first and then carefully examine the route the DriveSmart suggests.