Is there a way to synchronize the files I store in the cloud with my local hard drive?

I have been saving all of my documents, etc on my local hard drive. I just copied them to the cloud. If I save future versions of these files to one location or the other(cloud or local hard drive), I will end up with multiple versions of the same file.

Is there a way to synchronize the files I store in the cloud with my local hard drive?