Went sly 2 months ago (lazy sly since I shave every 2-3 days - due to irritation in neck).
This site has been a great resource for me.
It has been a great experience so far except I get asked why I shave the head at least 5 times a day. This is because of my job (seeing about 15-20 patients a day who saw me with hair on there last visit). Anyways, my answer at this point is simply to say "I felt like it" and chuckle. I am an oncologist so a lot of the patients I see are bald and they seem to appreciate the sly look.