Author Branding

Nope, I'm not talking about pulling out the cattle prod and having my way with my fellow authors, sorry to disappoint you. What I am talking about are those pithy little sayings authors use to identify themselves and their writing to the public.
A few good ones come to mind as I type this. There's T.A. Chase's, "No Boundaries", or Vivi Anna's "Igniting passion one page a time."
Though whether or not an author needs a good 'brand' remains a matter of opinion, I've decided to use the slogan, "Romance without inhibition." I chose this one because it would fit all the subgenres I write in, (contemporary, paranormal, amd m/m).
What do you think? Do authors need a brand, or are they optional only?