Dragon's Bloody Treasure

Pranayama is nifty and useful but this monotonous act sends us many times into mind numbing state.
To prevent this, make pranayama interesting. Breathe as if you are playing some drums. Listen to the sounds of inhalation and exhalation and try to convert that sound into some kind of rock music or anything you wish. Its ultimately in your hands how you do pranayama. The point is you won't quit doing it at all by twisting and tweaking wih the basics. In fact, it will motivate you  to further levels.