A tiny downloader for xkcd.com
Saves the comics in subfolders containing 200 comics at once.
It's pretty fast since it saves multiple comics in parallel to avoid bottlenecks and xkcd.com is nicely hosted.
Just run the tool with the path to where you want your comics downloaded.
Once you've done that, it will save a cfg file with the location specified.
For example:
java -jar xkcdl.jar "/home/yourname/Pictures/XKCD"