It is well known that right-angled Artin groups (RAAGs) contain a wide variety of interesting, and sometimes exotic, subgroups. Yet a theorem of Baudisch from 1981 states that all 2-generator subgroups are either free or free abelian. I will talk about some recent results of my student Michael Carr showing that these 2-generator subgoups are always quasi-isometrically embedded in the RAAG and discuss consequences of this theorem for cubulating 3-manifold groups.