Title: Parametrizing scalar corrections to general relativity Abstract: General relativity passes all tests of gravity so far, but none of these are in the truly strong-field, dynamical regime of the theory. On general grounds we expect the theory to be incomplete and require corrections. I will discuss some forms that corrections may take and where to look for them. The workhorse will be the phenomenology of the compact binary system's inspiral, with dynamical Chern-Simons theory as a prototypical example of a correction. If nature is kind, we can constrain or measure these corrections with future pulsar timing or gravitational wave detections.