I'm only interested in watching anime that I actually own on physical media, so I'll be using this list a bit differently than intended:
"Watching" -- Anime that I am currently watching.
"Completed" -- Anime that I have completed.
"On-Hold" -- Anime that I own, but have not yet watched.
"Dropped" -- Anime that I did not like and/or sold off.
"Plan to Watch" -- This section is A) for anime that I have seen that I do not own (or is unavailable) on a physical format, and B) for anime that I want to see, but do not own (or isn't released yet).
With the exception of "Plan to Watch," every anime listed is one that I own, either on DVD or Blu-ray.