Kyle Rankin uses razors as a very effective metaphor for open standards. I wish more people thought like this about everything:
When my son gets old enough to shave, I can pass down one of my all-metal, decades-old antique razors to him, and it will still work. While everyone else in a decade will have to shave with some $20-per-blade disposable razor with three aloe strips, seven blades, and some weird vibrating and rotating motor, he will be able to pick any razor from my collection and find affordable replacement blades.
This is also why I don’t use streaming music services!
FULL DISCLOSURE: I use an electric razor.
Lessons in Vendor Lock-in: Shaving | Linux Journal