Ok, it was only about 50......... and one wife ago. I decided in winter time with the snow flying outside and the air so dry in the house your finger would spark with static electricity when touching anything that I had the brain storm to let the clothes dryer vent into the house. I put my then wife's stockings or panty hose over the vent to catch the lint.

I can't remember the outcome other than deciding that was not such a good idea. Don't remember if it was the dust or what but I do know it didn't last long. I put the vent hose back on.