Excellent article!

One note, tho: You may want to keep `docker-machine` app maybe for a couple of reasons:

• Managing remote docker hosts (Digital Ocean? AWS? Azure? test and staging servers? Maybe docker apps deployed in production?)
• Development of Windows (.NET) apps / Running MSSQL: How else would you (as of today) run these containers without Windows Server 2016 Tech Preview 5? (Read more at https://www.docker.com/microsoft)

The 36GB of “machine data” in the `~/.docker/machine` folder must be VMDK and other local virtual disks and files for the local machines you’ve created using `docker-machine`. Remote machines created/managed by `docker-machine` don’t generate VMDK’s on that folder.