Should I thread tape counter-clockwise on kitchen sink shut off valve?
TPFE tape is wound around pipe threads in the same direction that the coupling nut is twisted when tightening. For the illustrated pipe, that would be clockwise. If the pipe were pointing down, but you were looking from above, counterclockwise.

If you wrap it in the direction opposite the nut-tightening direction, the nut will unwind it, it will bunch up and prevent a good seal.