I have some new Sloan Fit pants from Banana Republic that get fairly stretched out by the end of the day. They are dry clean. When I lost weight, I washed and dried a few of my old pairs and they shrunk nicely -- but I'm looking for tips on how to restore the new pants to their original shape without having to take them to the dry cleaners every time I wear them -- they aren't dirty, just a little bit out of shape.

They fit nicely now (during the first wear, anyway) and I don't want to risk shrinking them.

Any tips?