Online Shopping

I use the designer's website, or the website of an authorized seller (like upscale dept. stores). That way the issue of fakes or quality is moot. I know that the bags will be real and good quality. I always make sure they have a return policy, too.
 
I use the designers website or Elux. I use department store websites too. ie, Neiman Marcus, Macys, Bloomingdales. I use ebay too but only sellers who I know only sell auth.