The other day I found half a can of chalkboard paint in my paint stash in the basement. I think my friend, Sarah, gave it to me last year when they moved and I forgot about it. What an exciting find! I immediately started prowling around the house, looking for some unsuspecting surface... and decided on my pantry doors.
Andrew sanding them for me
Stuff I read said that to properly prepare the surface for being erased, I should color with the edge of a big piece of chalk over the whole thing and then wipe it off