1)   GeoCache GPX Grabber 50805.2320
GeoCache GPX Grabber makes GPX files automatically. Simply collect waypoints, and include them in the URL. The browser will download the GPX file to the folder of your choice. You can then open this file using a program like GPX Sonar.

 2)   Geocaching 9.0
This is the perfect free computer software for anyone that enjoys Geocaching. Now you can keep detailed records of each cache you find and those that you have already located, or keep information on upcoming searches.