The GSA Backup Manager is a program that will help you to create regular backups of your computer files and store them either on external devices or on the local file system. You can choose what files to backup in many ways by filter settings. Once you have chosen some files to monitor, they get written to the backup system on change.
It is also possible to backup the files on an external device (like an USB Stick) when you connect it to the PC. This opens the opportunity to connect your USB stick when you want to leave work so that GSA Backup Manager can automatically create a backup (refresh changed files in backup archive). In the end you know everything got saved to the USB stick as a backup. Restoring the files is easy as well as you can load backups and browse in these files.