This is all you need:
Baking soda, a jar, essential oil in a pleasing scent
Fill your jar about a third of the way full with baking soda, and sprinkle a few drops of essential oil on top (I found my orange essential oil at The Vitamin Shoppe, but probably any health food store would carry essential oils).
Then, put the lid on and be sure to poke some holes through the top in any shape your like. I put a big decorative bow on my jar, and it even looks fine in the living room. Every once in a while, give the jar a little shake to stir it up, and keep the scent coming out.
Real Simple has some good tips for cleaning and deodorizing your home, such as putting leftover orange or lemon peels in your garbage disposal, and then running it with warm water to freshen it up.
To keep your sinks looking shiny, use this handy dandy awesome cleaning tool.
Then Real Simple recommends taking a little baby oil and polishing up the chrome.
Here is a picture after I used the magic eraser and baby oil.
My sink is kind of old, but the faucet shined up nicely.
Magic erasers are really great for a lot of things that need scrubbing. I've removed lots of marks on walls with them, although using a light touch is best so your paint doesn't fade. They also work on scuff marks on floors and little girls' shiny shoes and insides of refrigerators...
Baking soda of course is great for a lot of cleaning purposes including teeth and a soft scrub for sinks and tubs, but it also can help freshen your carpets. Just sprinkle it over your carpeting and wait 10-15 minutes and then vacuum.
I've seen lots of suggestions for using lemonade koolaid in your dishwasher to clean it up inside and get rid of deposits.
So of course I had to try it, and even though I didn't notice a huge difference as far as stains, my dishwasher smelled so good after I ran it.
Hope these tips are helpful, and that you have fun making and decorating your own air fresheners.