protecting one's privacy from inference in data

Techdirt has an interesting discussion on the importance and problematic nature of inference from data, that growing capability corporations have, as more data about us, consumers and citizens, is gathered. in a recent post the usage of such data from one's cellphone was demonstrated.

Although it appears to be one of the necessary evils of the information revolution I believe that a solution to the growing uncomfortable feeling "too many entities know too much about me" will not be unpopular.

I know that some might claim that I'm too old to accustom, but facts are that teenagers display a similar awareness to this issues and invent solutions which help them control the flow of information about them, at least where they can have some control.

As the solution to which I have implied in the past, of hiding oneself completely, as suggested in Roger Zelazny's "My name is Legion", is quite hard to achieve, and bears with it a very high price,  It is high time for the development of a "privacy shield", some technological solution to protect one's privacy, when needed and wanted. Something like the scramble suit of Bob Arctor in Philip K. Dick's Book "A scanner darkly" (you might have seen the movie).

Now, how do you develop such a technological feat ?