To add, * Good regexp chops in a scripting language. * Cooking, because it's a proxy for skills in procedures, taste and aesthetics, and makes you more able t

To add, * Good regexp chops in a scripting language. * Cooking, because it's a proxy for skills in procedures, taste and aesthetics, and makes you more able to keep a healthy diet. * How to set up, maintain and use a commuting bicycle. Easier and more productive than the gym.