A lot of stuff slips through the cracks. Like wind...wind slips through. Water. water slips through. If we are to be warm and snug in our abode the cracks should be plugged. As I write this I am sitting in shirtsleeves and fending off an invasion of ants large enough to tow a car. That does not mean I won't get cold soon. My home is blessed with a single option for heating which is the one where you burn stuff. This means I need to clean and prepare the burning apparatus from last season to get it ready for this season. I read too many stories of space heater "accidents" every year so don't let it happen to you. The time is now to prepare for the cold and do it safely.