My mother told us they used vinegar & water as a hair conditioner during the Depression, so one time when we had run out of "real" conditioner we tried it. I had long (between shoulders & waist) straightened hair at the time. It worked GREAT for getting rid of tangles. In addition, my hair looked really auburn...so I did this for years! (My hair had been auburn when I was in grade school, but had darkened to "plain old brown" - I didn't realize there was any red left to highlight.)