I am the mother of 5 and had my last child rather late in life,  She is 15 years younger then my next youngest.   She just turned 3 and she in finally potty trained.   I have always found that the girls were easier then the boys and my little one was great with peeing,  it was the pooping that she wouldnt go for.   She told her dad and I that is was scary.   My best friend thinks that she got a little splash or something once when she went and it freaked her out!!!  Anyways,   I tried everything from candy to money to anger and nothing worked,  then one day she went in the toilet more by accident then not and I told her how happy I was.  Of coarse the next day she went in her pants again and I put on a sad face and told her i was very sad,   she was worried about that and I thought,  hmmmm,  I might be on to something here.  Well sure enough she went in the toilet the next day and she wanted to make sure that I was happy not sad!!!!  And in case you dont know,  I was very happy!!!   I am not saying that this will work for anyone else but I was so relieved to be over the poopy pants stage that I wanted to share and I really hope that it helps someone.

Good luck