I've been using XML and XSL a lot lately in my work and I was thinking about how I might apply it to geocaching.

If I could get a file of all my caches in XML format, then I could transform them into almost anything with XSL. For example, if I wanted my own web page, transform it into HTML. If I wanted to load into another program, I'd just need and XSL file for that format. If I wanted to print a book of all our family adventures, I could transform into a PDF file that could include pictures.