Eddie Albert of "Green Acres" was born on this date. When he moved from New York to Hooterville he was always elbow deep in major repairs. Spring means that things in and around your house soon will be requiring attention, too -- like your lawn. After a long winter snooze it's time to get your lawn mower out of mothballs. If it hasn't had a checkup since Nixon was president, it's time to clear the air -- literally. Like a car, a poorly tuned mower runs roughly, guzzles gas and emits pollution. First change the air filter; the mower then will use less gas and put out fewer hydrocarbon emissions. Next change the oil; that'll reduce friction and fuel consumption. Then change the sparkplug; your mower will start more easily and run more smoothly and cleanly. This year even the National Wildlife Foundation urges homeowners to tune up their mowers for a better, cleaner, more energy-efficient summer. While you're cutting grass, cut emissions, too. And that's the On The House tip for today.