need printing advice!

Hi. First off thanks for your time, I appreciate the advice you guys give. I am putting my high school art portfolio into a printed portable version and am wondering If there are are anything I need to do to my images before I print them. The reason I ask is when I have printed in the past my renders have had a pasty faded appearance. Anything I might need to know about printing in general would be useful as well.

You donĀ“t need to know about printing but color managment. =)
A colorimeter is a good start to get on paper what you see on your screen, but they are expensive, sometimes copyshops or photo/filmstudios got them for rent as well.