Also "Fishering" . . .
. . . which is a variation of Wonging. When Fishering, you back-count at least two tables at the same time! "Although this takes a little practice, it is not as hard as it seems".
Bob Fisher is a great advocate and practitioner of this technique, and likes to use elaborate means to have a visual, through ceiling mirrors, etc.
Be warned that excessive Fishering can make you unable to change paragraphs in your posts.