Grip strength is a limiting factor in a lot of people's training. And there's nothing worse than having your grip give out on you before the rest of your body does when doing pull-ups or deadlifts. There are a lot of easy ways to develop your grip that won't burn you out. Remember, the ability to squeeze things intensely makes you stronger.
Finally, a warm-up routine that even people who hate warming up can handle! This short series of drills will not only make you feel better, but the increased mobility you'll gain will help you make unprecedented gains in the gym.