In the 21st century, the most important skill anybody could have in technology is programming (also known as coding). Now that I think about it, programming is one of the most important skills you could have, period. Below is a really cool video that explains why coding/programming is so valuable.
The video says it all, so I'll just quietly leave now and let you master the art of programming (below I posted some resources to teach yourself programming for free).
Unless you already know how to program! If so how did you learn? What languages you do know? 
Resources:
http://www.codecademy.com/
https://www.udacity.com/ 
https://www.coursera.org/
http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/
https://developers.google.com/university/
https://developer.mozilla.org/en-US/learn