SiaCoin (SC) is one of those sub $0.01 altcoins that you might want to put on your radar. While most micro-coins with low values may actually be junk coins, SiaCoin looks to be backed by some promising technology.
Sia is a cloud storage technology that splits apart pieces of data and stores those fragments in a redundant and decentralized manner across the world. Due to the currently low adoption rate of the technology, the cloud storage and bandwidth prices to access data are currently very low. You could store your data on Sia for a very small fraction of what it would otherwise cost on Amazon S3, or Microsoft Azure.
As the company prepares to ramp up its business development side in 2018, combined with the increased need for businesses to become PCI Level 1 compliant, Sia may be a cost saving solution in the near future.