It's to.... so that it will..... actually, I'm not really sure what it's for.

Solution to a neighboring classroom with a nonworking A/C. Cardboard comes through in a pinch!

From the submitter:

"The only A/C in the apartment was in the living room with a wall fan to draw in the cool air to the bedroom. With 95+ degree summers, that didn't cut it so I took a box and some duct tape and made a direct vent. Worked perfectly!"

From the submitter:

"I was looking at an appraisal and noticed that someone put a window air conditioner in the corner of the room. Sure, it will work for a while, but I guess they didn't read the directions!"

Duct tape, old vacuum cleaner hose and a funnel from the parts shelf.

We're getting into the cold months, so you probably won't need too much air conditioning, but few can resist the opportunity to craft a good kludge, amirite?