Here's a simple way to gain flexibility in your lats, chest and shoulders using a wall to support your body weight. Remember to do it after training with weights or whenever your upper body feels stiff.
Face a flat, stable wall, and stand a few inches away. Step your left leg about 3 feet behind you, with your right toes facing forward and your left toes turned slightly outward. Rest your arms straight above you on the wall. Inhale and lean toward the wall, bending at your hips.