Hi, I am new here and I am looking for answers to a few questions I have. A) First let me tell you the situation. I am planning of creating a clothing line, so I would assume I would have to trademark the name so no one else can use it. Would that be the first step? As I am doing my search for a trademark, I notice that some of my personal information would be public. Is it possible to use a PO box for my mailing address? B) Would I secondly register the name as a DBA? I will start off selling the clothing line online and as business picks up obtain a physical address later on. Because I will start off by selling online do I need to register a DBA? I am a bit confused and I was wondering if someone could point out the steps I should take in my situation. Thank you for taking the time to read my post and thank you in advance for your advice.