What are the most effective ways to prevent whiteboard ghosting?

Ghosting prevention starts with choosing the right surface — porcelain and glass resist ghosting far better than melamine. Always erase within a reasonable time (don't leave text on for days). Use quality dry-erase markers (avoid budget brands). Clean the board weekly with an appropriate whiteboard cleaner even when it looks clean. Never use permanent markers. OfficeFurniture2go.com carries ghosting-resistant whiteboard products — call 1-800-460-0858.