One of the most important decisions an entrepreneur can make is choosing a co-founder. Many seek out partners who are just like them, because "Great minds think alike," right? Or, "Two is better than one to get the job done" -- or any other maxim you'd care to conjure.

But, is a mirror image of yourself really best for your business?

Related: How to Run a Family Business Without Killing Each Other

Instead, why not seek out someone who can complement your skill set and knows you inside and out? Someone who understands your strengths and weaknesses, and how to work with both. For me, that was my brother James, and we’ve been founding partners for almost 20 years, including the last five with our company Shufflrr.