Wash the jeans before hemming them

Washing before hemming will put the denim through any initial shrinking before you take more away. Just to be safe, though, take off a little less than necessary when having them hemmed. If you need an inch taken off, go for two-thirds of an inch instead, which will buffer any future shrinkage.

Wash the jeans inside out

The first time you wash your jeans, wash them alone. After that, it's a good idea to wash them inside out, as this is the best possible way to maintain their color and overall look.

Don't put jeans in the dryer

Always lay your jeans on a towel to dry or, if possible, hang them with clothespins so that no part of the jean is folded over.