  We revisit the issue of worldline formulations for the q-state Potts model
and discuss a worldline representation in arbitrary dimensions which also
allows for magnetic terms. For vanishing magnetic field we implement a Hodge
decomposition for resolving the constraints with dual variables, which in two
dimensions implies self-duality as a simple corollary. We present exploratory
2-d Monte Carlo simulations in terms of the worldlines, based on worm
algorithms. We study both, vanishing and non-zero magnetic field, and explore q
between q = 2 and q = 30, i.e., Potts models with continuous, as well as strong
first order transitions.
