Share 'Commercial use of public domain'

I am afraid my Lithuanian does not go beyond some simple survival phrases such as "Aš noriu gerti alous", so I hope I may be forgiven if I start a discussion in English. How to make a living in a public domain world is indeed a great question. First, I would like to point out one important thing: there is absolutely nothing about public domain that says you cannot use it commercially. It is not a…