It is also recommended that headlights be on while driving on all rural two lane roads.
Some interstate highways have tolls.
Many of the coastal islands have bridges which also charge a fare for crossing. Some fares can be quite expensive for the infrequent user, so be prepared to pay a few dollars. Although much of Florida appears to be open country, the areas frequented by tourists are usually densely populated. As with any urban area, and many suburban areas, all individuals should exert efforts to assure personal safety. At night, park as close to a street light as possible.