In the book, The Primal Connection, Mark Sisson (one of my all time favorites!!!) provides an awesome exercise on how to expand your comfort zone. I thought it was really fabulous and wanted to share! I strongly encourage everyone to give it a try - it will take 10 minutes of your life, and if you follow through, could drastically improve it.
Here is what he says to do. On one large piece of paper make a giant circle labeled comfort zone. Inside write 15 skills currently inside your comfort zone. Outside of circle fill in anything that is outside your comfort zone but that you desire to accomplish. Then he says to add to both lists everything you can think of related to your personal, professional and life affairs. Get super creative - fill in everything you can think of that you are comfortable with, and everything you can think of ever desiring that makes you uncomfortable. Next he says to circle the FIVE most important things you have listed "outside of your comfort zone". Then jot down some action steps you can take, next to each of these items to get comfortable with them. Lastly, take action! As you complete some of these tasks your comfort zone is growing. Repeat this cycle often.
IF you haven't read The Primal Connection, I strongly recommend it. It is a wonderful book, and even if you think living like "a caveman" isn't your thing, there is something in here for everyone. Everything he teaches in this book is related to things in life we could all get better at to improve the quality of our life & those around us!! He outlines simple steps along the way, and realistic small changes we could make that would have drastic impact on our overall well being.