Fuel stations in orbit

Elon Musk just gave the most revealing look yet at the rocket ship SpaceX is building to fly to the moon and Mars

Elon want to fuel his space ship in near earth orbit before flying the moon. The business we need is fuel stations, replenished with robotic ships.   Send up the tanks, full, separately. Hold them safely then attach them to your ship in orbit.

The gas station attendant runs abourtin an orbital scooter.