For start-ups, making those first few sales can be the hardest part, writes Chris Savage (savagethoughts.com), co-founder of Wistia, a video hosting site. Truly understanding your customers will help.

"What books and magazines would your customers read? What conferences would they go to? What search terms would they use? Who would they follow on Twitter? Once you have an idea of where your customers hang out, you need to go there. The more time you spend where your customers are, the more you'll learn about how they think and whether or not you're focused on the right group."