Because I'm a wuss and can't do a full pull-up, I am always looking for better ways to do pullups. Look at this picture of the Lebert Equalizer pullup. Love it. And the Equalizer makes so many exercises more effective: pushups, tricep dips, jumps, planks, side twists, and one-legged squats (another move I'm always trying to perfect without killing myself), and many more.
Lebert is such a cool company. They also have a great band system called The Buddy System, plus their Stretch Straps which they gave away during our fitness contest.
Check out all their products and learn more about their company here.