Hello! I have a bunch of people asking me to make liquid soap, so I'd like to give it a try. I was watching soaping 101's youtube video and noticed that she used glycerin instead of water to make it. I understand that it speeds up the process considerably, but does it also contribute to the thickness? Any other online resources or video's you recommend? I just got Catherine Failor's book, so I'll be giving that a read as well. Thanks!