The Utah Geocachers wanted to go some extra miles (no pun intended) and created a great page of related games to play. Only in Utah though.... for now.

Just found another GPS related hobby. I'm basically already doing this for the most part by caching near beautiful sites that I photograph but there are a few spots that fall thru the cracks. This would be a good spot to share them on. Check it out. GeoSnapper - GPS Photography

GPSBabel rocks!!! If you are using multiple GPS programs and equipment like I am this utility to convert formats is a godsend! Check it out. Wayhoo.com - Convert GPS Waypoints using GPSBabel