This is a common problem, especially for ladies in NYC. The solution: Zakkerz, a flexible fabric containing extra-strength magnets. Just fold up pant legs to a desired length and wrap the Zakkerz around it, with one magnetic end inside the pant, the other on the outside. And snap! — problem solved. Two Zakkerz per leg will securely hold up the fold without damaging the fabric of your slacks. Check them out at zakkerz.com for instant results!