The researchers used all this information to devise a number of scientifically tested ways to transport coffee without spilling a single drop. The first technique they suggest is simply to walk slowly -- most people try to walk fast, as if making the trip shorter decreases the chances of spillage, but that doesn't work thanks to the "no doy" principle. The second suggestion is a little more counterintuitive: watch the cup instead of your feet, since this allows you to make small adjustments to correct for sloshes of the liquid. The third suggestion is to get an unusually shaped cup, one with an interior series of rings to suppress sloshing. They got the idea from the way fuel tanks are stabilized inside missiles. So there you go: block your office hallways by walking infuriatingly slowly, focus on the coffee itself while paying absolutely no attention to where you're going, and carry a missile around. You won't waste a single ounce of precious caffeine for all of the 10 minutes before you're fired.