On a warm, sunny day, hang your laundry outside on a clothesline to dry, instead of using the energy-hogging dryer. Your dryer is the second biggest use of energy in your home, so line-drying can be a huge energy- and money-saving idea. To capture the true scent of summer, mow the lawn right before you hang laundry; the sheets take on the smell of freshly cut grass. P.S. -- Make sure you are allowed to hang clothes outside to dry; some neighborhoods don't allow it.