Mirroring final release repositories of three defunct distros to keep things limping along until the new release is done and I can kiss the Linux-only server-side stuff goodbye.
This proved difficult as rsync or ftp access was troublesome or non-existent where the archives were concerned. So, open VIM. Whip up a JAVA program to take a HTML snapshot of a repo page, parse out all RPM package urls, and create a shell script to download them with "play nicely" restrictions on bandwidth.
Mental note: Buy another 2TB SSD the next time I'm on Amazon.