Some people frequently ask how to download videos on Youtube.com. There are many ways. But, the fastest I think is the KISS way ;-)
Supose you are watching a video like: http://www.youtube.com/watch?v=R4I0Fymw2U8 . And you want to download the video. OK, no problem. Just add KISS to the URL, like this: http://www.KISSyoutube.com/watch?v=R4I0Fymw2U8 . And that's all. Now you have a direct link to download the file ;-).
OOPS!, a .FLV file right? what is that? Play it with Windows media player Classic .