Get a Second Wind

If there's no time to nap before you head out to tonight's bash, try this instant energizer: Sit on the floor and hug your knees to your chin. Keeping your spine rounded, rock back and forth 12 times. This yoga mini-move massages the back and neck, causing the feel-great hormone serotonin to be released. You get the lift you need to party with the best of 'em.