Engadget was an early proponent of crowdfunding and has helped many exciting gadgets become a reality. The only downside of this is that my inbox now overflows with Kickstarter and Indiegogo pitches looking for similar treatment. In 2015 alone, I received almost 1,400 emails relating to campaigns on those two websites. It may be a chore to get through them all, but it's also given me plenty of time to pinpoint what makes a successful campaign. So, before you quit your day job, save yourself some heartache.