Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?
These two web sites have information about weather stripping your windows.
http://www.dummies.com/how-to/content/how-to-add-weather-stripping-to-windows.html
http://www.energysavers.gov/your_home/insulation_airsealing/index.cfm/mytopic=11280
