Getting a dba (doing business as) can be good if you want to start a company but can’t come up with a name for it yet.
I created an LLC which was just my last name, LLC until we could come up with a name for our new web company. When we did find a name for the company, all we did was file for a dba so we could do business as the LLC, just under another name. This way, you only have to have one bank account when you create the holding company. I am not a lawyer, but it seems like a good idea for the future if you want to create new companies under your original business name.