Wonders: A primer must be used underneath your application to help prevent your make-up from looking less fresh throughout the day or night.
Try: MAC Prep + Prime
Results: One pump is all you need and your make-up will not budge
Fantastic Options: Smashbox, Make-Up Forever primers

Eye-shadow will not fade or crease if you use a good primer before your shadow application.
De-crease: MAC paint pots, Groundwork , is a neutral shade that sits well under most shadow colors

Image source: http://www.google.com/

Image source: http://www.google.com/