With gas prices cruising towards five bucks a gallon in most parts of the country, Android owners should tap their phones before they tap a tank.

There are many free apps that can help you find cheap gas in your area, identify and avoid traffic jams, and share rides with others via carpools and other forms of public transportation.

Before hitting the road, we recommend you download these handy Android apps.

Grouping together in one vehicle saves on transportation costs and actually may help you get where you’re going more quickly by taking advantage of the carpool lane. Of course, the eternal question remains, “Who’s turn is it to drive?” This free app has a recommendation system that actually suggests who’s turn it is based on driving history and a proprietary scoring system.