I've become known amongst my friends for giving the same advice when it comes to most problems: "Uninstall Twitter and start going on walks."

I don't think it's only useful for intellectual pursuits: we rarely get enough alone time nowadays. And when we do, we're bombarded with stimulation and noise. There's no good opportunity to be alone with ourselves. Walking in a safe, familiar place without my phone has become one of my most important and cherished daily rituals -- I see it as an emotional cleansing.