Sanding Drywall Compound

Well, I finished putting up drywall, taping, and the first coat of mud where the soffits were.  However, the next step was to sand.  I hate sanding drywall.  The dust gets everywhere!  I cough and gasp, even if I am wearing a mask.  But then...

I read about a sander with a vacuum attachment!  What a great idea!  As you can see, it has pretty good suction (I bought a new shop vacuum while I was at it).  Sanding is a little difficult because it sticks to the wall so hard, but there is no dust!  Even the hand on the sander has no dust.  I was sanding a spot right above my head, and breathed in no dust.  What a marvelous invention!