This thread has been very helpful!
I am a year into starting my own leather crafting business with my husband.
We am still very new at this, but, what we've learned and what is working for us is doing everything we can to get our name out there. Social media has been integral to our success. Facebook, Twitter, Tumblr, Google +, Pinterest and Instagram, to name a few place we hang out to gather and engage customers. We also get ourselves out there and participate in little fairs and local shows to get the local community familiar with us and our products.
We are still learning and growing everyday, but the best advice I have for anyone wanting to make a living doing leatherwork is to work hard, figure out your market, and don't give up when things get tight. AND most importantly, and can't be said enough, is don't sell yourself short by offering a lower priced products!
Good luck future leatherworkers!