As a public service for anyone else out there dealing with excessive window condensation this (very cold) Minnesota winter, here’s what to do:
Assuming that the windows are in good repair (no broken seals, etc.), the issue is excessive humidity.
Ergo . . . identify and remove the source of the humidity!
If that’s temporarily not possible (see, “The Mystery of the Sweating Windows“), the short-term solution is to increase air flow and to use stop-gaps to get rid of the moisture.
Besides wiping off the windows, that means running a ceiling fan (if there is one); temporarily cracking the windows an inch or two; and/or leaving the window shades up a few inches to promote air circulation.
