Even though winter is still weeks away, we need to brace now for a rude surprise coming soon. I’m talking about winter heating bills. Natural gas and heating fuel prices are surging. The most efficient and easiest way to keep your home’s winter heating bills under control is to set the main source of heat very low, then strategically supplement with efficient electric space heaters. You can rely on this method during the day as well as at night. My husband and I have operated our respective businesses from our home for more than five years. Our offices occupy the lower level of our home. During the cold months, in order to get the office at a comfortable 68 to 70 degrees F using our forced air furnace, the rest of the house gets a lot warmer-especially the upper level, where it gets downright hot. That’s totally unacceptable because those …