  We present the first systematic spectropolarimetric study of Luminous Blue
Variables (LBVs), and find that at least half those objects studied display
evidence for intrinsic polarization -- a signature of significant inhomogeneity
at the base of the wind. Furthermore, multi-epoch observations reveal that the
polarization is variable in both strength and position angle. This evidence
points away from a simple axi-symmetric wind structure \`{a} la the B[e]
supergiants, and instead suggests a wind consisting of localised density
enhancements, or `clumps'. We show with an analytical model that, in order to
produce the observed variability, the clumps must be large, produced at or
below the photosphere, and ejected on timescales of days. More details of LBV
wind-clumping will be determined through further analysis of the model and a
polarimetric monitoring campaign.
