This is how you shorten your jeans while keeping the original hem! A great trick to reattaching the hem will keep your jeans from looking unfinished: http://www.ehow.com/how_2305591_reattach-original-jeans-hem.html?utm_source=pinterest.com&utm_medium=referral&utm_content=inline&utm_campaign=fanpage
Alteration: My new favorite way to keep original hem on jeans
How to hem jeans retaining the original hem...perfect timing as I just inherited a pair of nice (long!) jeans from my tall sister. They fit great in the waist but are like 5 inches too long. Going to give this a whirl!