Next time you eat an orange or peeled apple or have a recipe that calls for fresh squeezed lemon juice, save the rinds and peels!
Place the rinds/peels in a sauce pan and add enough water so they are completely covered.
Place on the stove and set to a slow simmer. Add in some whole cloves, cinnamon, or nothing at all.
Let simmer all day, adding water as needed. Your house will smell sweet and natural for days to come! And at no extra cost besides a little electricity!