If we're professional, good employees at work and good sons and daughters at home, it shouldn't matter so much if a friend tags us in a photo which shows us tipping back beers at the weekend party.

He believes it will help us move closer to a garbage utopia where we recycle or reuse everything we can, with the help of far tinier, and far cheaper, versions of the tags.

Even though it is the thing far from us, we still put tags of like or dislike on it based on our own personality or mood.