Shark Tank Chaos, 40 Hacks for Great 2013, Randi Zuckerbergs Facebook Freakout, And More

2012 is quickly drawing to a close, but that doesn't mean the world has stopped turning. We had some good stuff in this last full week, and here's a selection of the best including 40 hacks you won't want to miss, the best concepts of the year that still haven't shown up, mind-bending optical illusions and logic puzzles, how to explain Santa scientifically, and how the Senate wants to keep spying on you. Check it all out below. More »