Here's a favorite "Do Just One Thing" that is always worth revisiting: Use revolving doors when entering stores and office buildings. When you have the choice, go with revolving doors because they help block heat and air conditioning from escaping from the store. Using a regular door can create a vacuum effect, forcing hot air into the store during the summer months and causing the air conditioning system to work harder and less efficiently to cool the place. Choosing a revolving door is an easy and green thing you can do every day.
ANDREWS MCMEEL SYNDICATION