Sure, you should be doing that thing you do. And sure, it's hard to take time away from it. But do. Take time. Spend it on something else, spend it on something unrelated to anything you know or already work at. In fact, go ahead and dabble:

Dabbling is cross-training for the brain. Pursuing interests in a variety of subjects stretches the mind and pushes the imagination, causing us to be more creative. Dabbling is simply a way of gathering new information and experimenting with new ways of doing something. It causes you to think differently about everything else that you do, a process which can lead to incredible innovation. “The best way to discover something is to take an existing concept in one discipline and apply it to another,” says Stibel. Hopmann says Dabble fields lots of fan mail from people who have felt inspired after taking their courses, showing inspiration can come from the most unexpected places – even a glassblowing class

Why Dabbling can Make you a Better Entrepreneur – Entrepreneur magazine 27 February 2014

Read the whole article for more of an explanation of why it works plus what you can do to make the most of it.

Hat tip to Lifehacker.com for finding this.