If you haven't thought about whipping out a jigsaw puzzle yet, what are you waiting for? If you need a break from reading, knitting, sudoku-ing, or staring at the ceiling, puzzles are a great mostly-mindless activity that can eat up time with ease. Not only are you working your brain, trying to figure out how all the pieces fit together, but it's fun to see the full picture come together. You can consider yourself a puzzle detective of sorts.