I whack witchhazel on my head - seems to work but I have never really had an issue with an oily head, so...

For sun protection I too learned the lesson the hard way with sunburn. I used to use sunblock as a general thing, but now I only use it if I am at the beach or whatever. Now I have hats (not caps!). There's a hat in the car, a hat in the office, a hat in my briefcase, a hat in my man-bag. No matter where I am, there is a hat available and I wear it. I don't care if I look a twit - all I have to do is look at my father's head with the skin cancer burn scars all over it, and I am thankful for a wide-brimmed hat.

On an unrelated note, also watch the backs of your hands with sunburn and skin cancers. I have a can of spray on 30+ SPF sunscreen which I will often apply to my forearms and hands if I have to do work outside for any extended period of time.

It's sunny out there people - be safe!!!!

James.