Download youtube videos

More weekend oriented tip today;)
I have found downloading videos from youtube super easy with youtube-dl.
[bash]
# install it
sudo apt-get install youtube-dl

# you can fetch many videos at once
youtube-dl LINK1 [LINK2 LINK3]
[/bash]

This tool provide many useful options, like changing the audio/video compression format and quality. You can read more here.