Humidity is really only a big problem when it condenses somewhere you don't want it.
Your windows sweating are actually functioning as dehumidifiers. If you regularly wipe them, you have a poor man's dehumidifier. If you were to say, install better insulated windows your humidity level indoors would be higher, until it found the next thing to condense on. In the place I rent, the old single pane windows were replaced with decent double panes before I moved in. Those old windows pulled out the humidity by sweating. The new ones barely sweat. The unintended consequence, is that now the humidity condenses in the air conditioning ducts that run in the attic, and rain down through the ceiling vents on cold days. When I am cranking out the humidity with a lot of showering or cooking I will actually open the insulated doors, leaving the single pane glass storm doors to sweat, pulling out humidity.
I have to completely block of the ceiling vents in winter (heat is from radiators).
The humidity comes from cooking, dishwasher (especially drying cycle), showering, breathing, and any clothes drying that does not effectively exhaust to the outdoors. Any combustion that does not exhaust to the outside, such as gas stove, gas oven, or ventless gas heaters add humidity. Candles add humidity. Have your chimney/ heater flu checked, for both the furnace and the hot water heater, to insure they are working properly. Air drying clothes indoors adds humidity (rarely a problem for MMM, in dry Longmont)
Check your dryer vent and bathroom vent, make sure both are working well, clean the ducts. Always use the vent hood on your stove, lacking a vent open two windows on either side of the kitchen, and maybe have a fan in one pulling are out. Outside air is not a problem source of humidity when it is colder outside than inside, that outside air is almost always drier.