read about Aldrin Cyclers
It doesn't stop at the other end - it's in a permanent Earth-Mars-Earth-Mars orbit, and acts as a true shuttle. Only minimum fuel is requred for orbit adjustments, and the crew and cargo deliveries at each end are all that need to change orbits, and anything arriving can use aerobraking.
it's a very good, fuel-efficient idea, but also close to sci-fi, given our current capacity in space.