From
http://www.associatedcontent.com/art...ng_suede.html:
"Small stains on suede can be easily removed by erasing them with a clean soft pencil eraser. An emery board or fine-grade sandpaper can also be used to remove minor stains and dirt on suede. Gently and carefully rub the dirt or stains, and they should come right off.
Another very old and effective way to remove stains on suede involves stale bread. Simply remove the crust from a piece of bread and allow the bread to become stale and somewhat hard. Gently and carefully rub the dirt and stains with the edge of the stale bread, and the dirt and stains should disappear like magic."
Hope that helps!