Here is a page from a magazine with some ideas on how to wear a knee length denim skirt. Although it is from 2 years ago, you will still see the same styles being sold in stores today. The pencil skirt never goes out of style.
I realize that some people love jean skirts and other detest them. I prefer a denim stretch blend which is way more comfy than heavy rough denim.
(Click on the picture to make it larger).