Usually, planes are rent for hours. This makes it extremely expensive. Sometimes, you would like to rent a VLA, flight to other city, spend a weekend, visit it, visit your friends or relatives, or simply have a lunch in a restaurant and then return home. But you have to pay for hours.
I think it would be a great idea to develop a system and/or a business in Internet, to register flight plans for people who will rent a plane. With a critical mass of users,
this system would seek for combinations for one-way flights, so it would match people renting to flight from A to B with people renting to flight from B to A. This way, you would just pay for the time dedicated to flying, and planes would be available more time for more people.
Of course, the higher the number of users, the higher the savings and/or potential benefits and also the higher the probability to match more complex combinations of flight plans and number of planes.