Since I work at a truck stop, I just dunk my head into washer fluid bucket and squeegee it off.
when cleaning the dome, i go back & forth with shampoo, dove unscented soap, or body wash.
WARHAWK
I just use HeadShed about 3x a week, but in between that, I use Nivea for Men's Extra Gentle Face Wash - it doesn't dry my scalp at all. Might order some BG shampoo next time I order their shave gel - I really like their products.
I've replace the HeadShed with St.Ives apricot scrub for both showering and general clean up. Gives the old dome a great shine while removing excess oils.
for a real good shine:

or sometimes i follow my girlfriend: