The easiest way to do this is to keep your home well ventilated with open windows, ceiling fans on, and exhaust fans working when you cook. You can also get a dehumidifier if the levels are too high. A mini dehumidifier works great if you only want to accommodate one room, not a whole house. Other tips include keeping plants away from windows and firewood stored outside the home. You can keep neat packets of moisture-absorbing pellets around the house that are budget friendly and very effective. For exterior water on the windows, you can use rain repellant to make rain, sleet, or snow slide right off your glass panes. When the sun comes out, even the remaining traces are wiped off.