After quitting her job in marketing to start her own freelance design firm, Mosier and her boyfriend Rob Chianelli realized that Doug could be more than just a running joke between their friends.
She ditched the design firm idea and focused on building out Doug's social media brand as her full-time job.
Mosier spent several months designing her dog's brand and taking photos without getting any big breaks.
"It felt pointless because I had all of this stuff that looked amazing, and it wasn't getting the kind of attention I knew it could," she recalls.
But that changed thanks to a handful of adorable posts that caught the attention of media outlets in 2014. What set hers apart from other cute pictures? Doug's social media accounts were ready.
"When people went to see more, they saw that [the brand] was concrete. It was there. People trusted it," Mosier says. "Build a frame before you put a photo inside."
Having a bank of photos ready to draw on will help you keep momentum going.
"If you're going to start an account, have a bunch of photos ready to go before you start posting," Fitzpatrick says. "That way when you start, you don't have to panic. You have more to share over time."