Convert Mycaches is a Chrome packaged app that converts HTML from the geocaching.com Your Profile page into a simple list of geocaches suitable for posting to Livejournal.
To use this Chrome app, use Chrome to view source in the Your Profile page and copy the HTML for the geocaches you wish to convert. Paste it into the top box of My Caches Converter and hit the Go button. The result will appear in the bottom box and you can copy it into a text editor or into Livejournal.