Standing in the security lines at the airport, you mentally check off all the regulations. Take laptop out of bag. Remove shoes, belts, and coats. Place lose items like jewelry and change in bins. But as your bag keeps slowly toward that scanner, you realize you forgot the most important thing. Make sure any liquids are in 3 fl. oz. containers and sitting nicely in a clear ziploc bag. Inevitably the security guard stops your bag, glancing suspiciously at its contents. As it makes its way through to the other side where you're waiting for it, the security guard snatches it up and pulls out that 4 fl. oz. bottle of moisturizer you so irresponsibly left in there. It's taken away, tossed into the toiletry abyss, never to be seen again.