How should you waste time on the internet?

In this day and age the internet is becoming more and more pervasive. On our desktops, tablets, and smartphones the internet is almost impossible to escape. Most of us never go a day without using it for productive or, not so productive things. It's hard to imagine how we ever lived without it.

Not everything we do on the internet is worth while. It's often used just as entertainment to pass the time and fill some void within us. So how should you waste your time on the internet?