TOD:
Many years ago there was a hypnotist named Pat Collins who had a nightclub act on Sunset Blvd--the Hip Hypnotist. I had gone to it several times and it was a riot. One girl was told to sing a song about broccoli. She did--and was great!
I was about to return to school full-time after a long absence and felt I needed to really concentrate and make very good use of my time, so I took Pat Collins' class on self-hypnosis. I found the technique very helpful for getting into a relaxed state--and yes, even fifteen or twenty minutes is like getting an extra hour or more of sleep. Then a friend took the class. She, too, found it helpful. She had a problem with a contractor who hadn't installed something properly and was dreading having to deal with the guy. She used the techniques she'd learned to practice what she wanted to say to him. It worked beautifully and all was resolved to her satisfaction.