Vinegar Rinse

I was just curious -- who rinses their hair with a diluted vinegar rinse? I've noticed that when I use about 1/2 of a cup of apple cider or white vinegar to 4 cups of cool water as my final rinse, that my hair turns out much shinier, has more body and bounce and less frizz. I usually rinse it just briefly after the vinegar rinse to get the vinegar aroma out, but I do this several times a week and it seems a pretty inexpensive way to get the hair to behave better.

I'm sure this has been posted somewhere before (it's not new news), but I was wondering how many people actually do it?