Wash indoor and outdoor trash cans with hot soapy water to remove smelly bits and debris. Leave a couple of used fabric softener sheets in the bottom of your kitchen trash can and compactor to absorb odors.
Burnt-on food spill
If food from a casserole dish bubbles over onto the stovetop or oven floor, sprinkle salt on the drips to absorb the burned smell (this will also make it easier to clean up later).
Musty freezer Place a clean sock filled with dry coffee grounds inside to deodorize this pesky spot in your kitchen.
Smelly microwave The awful stench of burnt popcorn seems to hang around forever, but it eventually disperses. To speed up the process, fill a large microwave-safe bowl with 1 1/2 cups water and three or four chopped lemons along with a fragrant spice, like cloves.
Bring to a boil in the microwave, and then leave it to steam inside for 15 minutes (until the water cools down and can be removed safely). Leave the door ajar for an hour or so to air the microwave out.
Foul dishwasher Check that the drain hose isn't crimped, and look in the bottom of the machine for bits of food and gunk. Then, pour a gallon of household vinegar in the bottom, let it sit for an hour or so, and run the washer through a full cycle.
If the odor is still strong, call a plumber. It could potentially be a hazardous problem that needs to be remedied by a pro.
Pungent kitchen While cooking sharp-smelling items, like fish or cabbage, place a small bowl of white vinegar on the stove to absorb the odor. To stop offensive fridge smells, pour baking soda into a plastic margarine tub and poke holes in the lid; change as often as needed. Wipe down fridge walls with white vinegar to get rid of any lingering odors.
The toilet When this frequently used bathroom fixture needs deodorizing, pour 1 cup of household vinegar into the bowl and let it stand for at least 5 minutes. Scrub briskly and flush.
Not-so-fresh bathroom air Dab essential oil (cinnamon or orange) onto cotton balls, and place them in a small bowl on a shelf. Put matches in a pretty basket near the toilet for handy use.
Dingy carpeting To quickly deodorize a smelly rug, sprinkle a box of baking soda over it, and let settle into the fibers for 30 minutes. Then, vacuum it up.