This is pretty exciting... SpaceX will attempt to land a rocket after launch (PopSci):
Landing on such a small platform that isn’t completely stationary won’t be easy, and Musk estimates a 50 percent chance of success on January 6. Plus, the landing will occur after the first stage separates from the second stage -- the part of the rocket that will take the cargo capsule the rest of the way to the ISS. That means not all of the rocket will be saved, as the second stage will never be recovered. (However, Musk plans to recover the second stage in future launches.)
Still, the fact that SpaceX is attempting such an endeavor instills hope for a cheaper commercial spaceflight industry. According to Quartz, the cost to build a Falcon 9 rocket is $54 million, but the cost of its fuel is only $200,000. If launching a rocket in the future only required refueling and other servicing costs on the ground, that could bring down the price of going to space by millions of dollars.