Do you trademark your brand / app name / business?
DocSavage: I filed our name myself for the bare minimum filing fee ($275 now).  I think it's useful to put your stake in the ground and it increases the liability for those who violate your trademark.  I went the cheap route because I felt if I could get it approved by the USPTO myself, it's a done deal.  In the case of patents, how you formulate the claims has a major impact on how defendable your patent will be -- so pays to get some expert eyes.