Because of my work, I spend a great deal of my time not only understanding, but designing strategies and advising on products that modify behaviours. As challenging as this can be it is also a fantastic way of testing how successful the power of building habits is.
There is a number of sources I quote often when talking about this topic. I recently found one that explains how to create new habits in a very succinct way. Have a look and tell me what you think.
The main take outs are as follows. If you want to create a new habit:
Identify what triggers your old habit and change it;
Identify the new habit and make it very easy to do- 60 seconds or less, and
Don't be overambitious and focus on a single simple action.
http://www.boxofcrayons.biz/2013/03/rock-solid-habits-part-1/