please make screenshots faster/easier!

[swingdjted]

Is there a way I can find or make a utility where I could press a global hotkey (e.g. ctrl+shift+printscreen) and get the full resolution screenshot of my computer automatically saved with a unique file name as a picture file?

That way I wouldn't have to open an image editor or MS Paint and paste/save.

The suggestion I am giving would allow the process to happen all at once with the use of the hotkey combination, and ideally it could be done any number of times so long as I didn't run out of hard drive space.

For file naming, perhaps the date and time (including seconds) could be used to ensure each screenshot would be unique enough to avoid overwriting or other errors.

Is this possible, or does it already exist?