This thread has reminded me that I went to see one in 2011 and wrote down what she said - I just found it in my filofax
I had completely forgotten this until now!
Anyway she correctly stated that I had a ds and a dd but said I should have another daughter and asked had I had a mc - I said no and she asked was I pregnant. I said no and she said I should have another daughter and she said she was confused. I actually found out a few days later I was pregnant and I had a dd.
HOWEVER she also said I would have another son who would follow my ds around everywhere - I didn't though I have a nephew who literally follows my ds everywhere so I don't know if she saw that? Or if she was just completely wrong 
She claimed my children will all do well and cause me no trouble (this is the bit I find most far fetched haha!). She said dd will be on tv and ds will be great at football 
She said I will have a great happy and long life with no major illnesses and that dh will win money. She said I will buy a caravan which I would love to but cannot see happening!
She said I would be well respected in work and new opportunities would come my way which was vague. As it happens I have taken a whole new career direction in recent years.
She said a male relative would become very ill but would be ok, my father did become very ill and did recover, however again it was vague in the way she said it.
So in conclusion, I enjoyed the experience, I remember feeling fantastic when I got out and I enrolled 2 yr old ds in football classes haha! But really I don't actually believe in it 