How to clean carpet stains and pet stains

What do you do if you get a stain on your carpet, rug or upholstery between cleanings? One of the following or all three solutions here will work:

1. White vinegar solution: combine 1/3 cup white vinegar, with 2/3 cup water.
2. Detergent solution: combine ¼ tsp of Dawn® or Joy® dishwashing detergent with 1qt of water.
3. Ammonia solution: combine 2 tablespoon ammonia with 1 cup water.

The above is from a carpet cleaning site where there are other tips including steps on how to clean beer, coffee, tea or wine stains as well as pet urine stains, and others. Of course, you could get professional help from carpet cleaning experts like carpet cleaning raleigh nc. Incidentally, the tip above on cleaning solutions comes from their website.