Friday morning I finally caved and set up our window A/C in the livingroom.  It's the first time we've ever put it in the living room actually; in years past it was in the bedroom.  I feel a little guilty for some reason, but I am also loving this feeling of the air feeling like air and not steam.

Part of setting up the A/C was changing all our fans around to blow in the other direction.  We had them bringing air in from the bedroom, which is where the coldest air normally comes from. But now the cold air is coming from the living room and we need the fans blowing out through the bedroom to keep some circulation going in the rest of the apartment where the A/C doesn't reach.

The fan in our bedroom window is a "manually reversible" twin-fan window unit (picture).  Manually meaning there are controls for the fan on both sides but you have to physically pick it up and turn it around to change its direction.

And what did I find when I lifted the fan out to turn it aroung?  DUST BOOBIES!

You know how, if you run a fan for a while, it will start to get a layer of dust on the back side, collected from all the dusty air it sucks through?  Well, there was one of these layers on the back side, not of the fan, but of our window screen, where they had been sucking air through all summer.  A little circle of dust from each of the twin fans.  And you know how every fan has a "dead spot" in the center where no air moves?  Because the center point doesn't move any air, the blades do.  So in this center dead spot there was no dust.

So picture it...two circles of dust, side by side, with a dark dust-free spot in the center of each...

Yup, dust boobies!