> I've recently been finding it really hard to concentrate on my work and I genuinely think this might be the reason. I find myself compulsively opening twitter and tumblr and scrolling through for ages before realising that literally none of it is interesting.
LeechBlock has helped me out of this habit. I'd recommend giving it a shot.
It helps weed out the crap I've accumulated since the last machine rebuild, and makes sure I don't end up with an ever-growing hairball of dotfile madness.