I would not do anything. My 19th is coming up this month as well. I am not planning to do anything, no acknowledgement, no card and no gift. An anniversary is supposed to be the celebration of your marriage. Unfortunately our marriages only exist on paper. I did the same thing last year. Painful, but the reality is why celebrate something that is dead.
In my case, I would do something only if my wife took the lead. I don't anticipate that happening anytime soon.
