Our speaker was Natash Schroeder of the Blind Bath Company.
Their company has a new way to clean blinds involving immersing them in an ultrasonic sound tank to loosen dust and dirt.  They will pick up the blinds at your home, clean them and return them the next day.  The average cost is $25 per blind.  If interested in learning more, contact Natasha at natasha@blindbaths.com.