It seems to be quite a popular article, so I wanted to make sure Courtney received credit.
Here's how she says to make it:
What you'll need:
1/8 Cup of fabric softener (I used Downy April Fresh)
2 tablespoons Baking Soda
Hot tap water
Spray bottle (I used my empty 27 oz. Febreze bottle)
Using a funnel, pour fabric softener and baking soda into your spray bottle. Fill spray bottle with hot tap water and shake well. Don't forget to twist the nozzle over to the LOCK position if you're using a Febreze bottle, or you might fall on your hiney. Now go spray every fabric surface in your house and take a nap on your very comfortable and now un-stinky couch. :)
Store-bought Febreze: $5.59
Homemade Febreze: $0.15
Total Savings: $5.44 OR 97.3%!
Thanks, Courtney Luper, for sharing this great idea with everyone!