Yes, full sized towel! It hurt to watch that washcloth used!What a great video! I really enjoyed watching it.
Only thing I would suggest after watching it is:
1) Not a big deal, but you can always install your RAM before taking the plastic wrap off the glass. Of course, you still need to lay a full-size towel down first.
2) In the video, he touched the metal contacts on the sticks of RAM. I would avoid doing this and only handle the RAM by the sides just in case there is any residual static electricity built up in you. Last thing you want to do is risk shorting anything out.
Thanks again for sharing the link -- awesome video!