Better than excercising!
I wash my jeans in hot water which shrinks the waistline, this does a nice job getting them back to the correct size. Easy to use, although takes a bit of practice, but does exactly what it promises. I have only used it on jeans that take a beating from yardwork and/or working in the garage, but I am sure it does equally well on khakis and such too.
Rating: 4 stars