I have to start doing this and had no idea how to. Found this vid (from guinealynx I think) and now I feel pretty confident!
[video=youtube;2-M0XOddxPI]https://www.youtube.com/watch?v=2-M0XOddxPI[/video]
[video=youtube;2-M0XOddxPI]https://www.youtube.com/watch?v=2-M0XOddxPI[/video]