Easy Trick for Hemming Pants

Diva is short.  I mean, like 4' 11" short.  And according to her doctors, she isn't going to get much taller.    That means she has a problem with pants.
As she's getting older, she's starting to get curvier.  Little girl pants aren't fitting that well anymore. And junior sizes are waaaayyyy too long on her. 
I ran across this tip today for hemming jeans and keeping the original hem.  I can't wait to try it out to see if it works.  
You can find the original post here over at Do It Yourself Divas.