Have your duct system tested for air leaks. Many think that windows and doors are the major cause of a home's air leaks. But according to recent research by the Department of Energy, gaps, cracks and disconnections in the typical home's duct system are much more significant. The DOE states that the typical duct system loses 25 to 40 percent of the energy put out by the central furnace, heat or air conditioner. Leaks are usually the biggest problem.
You want to do the right thing and include a first aid kit in your workshop. The question is, what should you keep in it? Here’s a list of must haves: Regular and elastic bandages, antiseptic ointment, cotton swabs and balls, a tweezers, eye drops, elastic bandages with first-aid tape, gauze, a chemical cold pack, and a first aid information handbook. Also a list of emergency phone numbers either right near the phone or in the first-aid box cover itself.