Since I don’t have a blank map handy, I was playing around with a different way to visualize tectonic plate interactions so I can remember them more easily. This sketch shows which plates touch other plates, but doesn’t go so far as to describe the direction of movement or the type of each boundary.
Under this model (which is all sixteen of the plates shown in the textbook I’m using), there are 34 specific plate-plate interactions. Luckily I don’t have to explicitly remember them as a list: just knowing what a few plates are doing makes it pretty simple to hypothesize the movement of everything else (in theory, at least).