Sudoku getting too easy, you say? Try making (or, rather, writing) one instead, like this nine-paneled comic that works across, down, or on a diagonal.
An intrepid (or sadistic?) YouTube user created a “No Cry Challenge” video playlist composed of nineteen videos that will surely punch you in the gut. These things are heavy and heart wrenching. I don’t want to mislead you at all: they could very well ruin your entire week. The first one in the queue is especially devastating; I recommend doing it last. After you watch a couple, go outside and take a walk. Hug a family member, a pet or a friend. (via)