Hi there ..
I have read through these forum topics and am getting the feeling that a guide is highly recommended for a day's wandering around Fes Medina.
I have been to Marrakesh, and also a few cities in India, where I found that wandering was not spoilt by persistent touts once I'd become used to them, and they realised that I really wasn't interested in shopping.
Is Fes different in this respect? I don't want to ignore good advice, but I prefer to wander on my own, normally.
If i go for a guide, is it best to tell them at the start of the day that I want to experience the souks but not shop?