Short, but necessary:
Vinegar as a conditioner is a bad idea. Many sites I researched when looking for natural hair products recommended using ACV to soften and detangle hair. I really can't tell you if it softens or not, but I can tell you that having soft hair is pointless if you smell like a pickle.
Everything I read swore the scent rinsed out. I tried it several times. Once rinsed, rinsed, and triple rinsed, I didn't smell a thing. But people randomly started sniffing the air when they walked into the same room with me, their brows knit in confusion.
I didn't tell anyone what I was doing, but my husband leaned over to kiss me and asked, "Why do you smell like pickles?"
Don't do it. Just don't.