BlaBlaCar is a UK ridesharing service that connects drivers who have empty seats with people looking for a ride. Simply enter your departure and arrival destinations and times, then choose a driver that’s headed your way. You can contact them via phone or text to book your seat. Show up at the meeting place, then bring exact change — but this isn’t a ride for hire. It’s offsetting costs for the trip. Rate the drivers after your trip to build trust.