I am on both FB and twitter, I would have missed out on at least two of the most amazing concerts I've ever seen last year without them, but I limit my contacts to the musicians, venues and such that really interest me and I barely, if ever, post or tweet myself, I don't think my life is that interesting, went to work (which I can't discuss), had supper, cuddled the cat etc etc which is the sum total of most of my days! As far as my phone goes, I have a work and a personal mobile, the work one lives in my work bag (switched off most of the time) and stays there, my personal one lives in my handbag or pocket, but rarely comes out unless there is a family emergency! The number of people I have stared down on buses/trains when their one sided conversation is impinging on my quiet contemplation, reading, and/or listening as quietly as possible to my own choice of music! GRRR