[Migrated from tuzig.com]
2009 Aug 14 Update: Looks like rsnapshot is now packaged in cygwin! Thanks to pseudo-anonymous coward for the comment! Some of the information below may still be of interest, so it’s left unchanged.
Rsnapshot is a great tool for backing up data, keeping versions and using relatively minimal disk space. From the rsnapshot website:
“rsnapshot is a filesystem snapshot utility for making backups of local and remote systems.