Adding to the screenshot function, here is an extension which saves snapshots (screenshots) to a single directory, primarily this directory is created on an attached USB drive. In the absence of a USB thumb drive this directory will be created in the users home directory.
The primary function of "snap2usb" is to save desktop snapshots directly to USB drives (usb_device/snapshots/) directory. Maintaining an organized structure and persistence over reboots.
This tool comes in handy when tc is booted from a USB thumb drive, or when no home persistence is provided. Or simply used to organize snapshots into a single directory.
current status: extension submitted