  This note is intended to serve as a reference for conventions used in the
literature on string compactifications, and how to move between them, collected
in a single and easy-to-find place, using type IIB as an illustrative example.
We hope it may be useful to beginners in the field and busy experts. E.g.
string constructions proposed to address the moduli stabilisation problem are
generically in regions of parameter space at the boundaries of control, so that
consistent use of $2\pi$'s and frame conventions can be pivotal when computing
their potentially dangerous corrections.
