[Inkscape-user] Separating a self-intersecting curve

Is there a way to take a self-intersecting path or set of paths and dice them up into regions that can be filled? For instance if you draw a sketchy grid, with a set of wavy vertical and wavy horizontal lines, and you want to fill in the squares between the lines with different colors. If not, it seems like this could be a nice script to have.

--bb