I've been on no shampoo for quite a while... but it's mainly because my hair started falling off and so I said "fuck this shit" and did a buzzcut. No coffee? What? that's impossible I drink between 2-4 every morning! I can't live without my daily fix of caffeine!
No shampoo would certainly be easier with a buzz cut, that's for sure. Has it been working well for you? Or anything different?
Before I was able to limit to 1-2 cups (coffee, not shampoo) throughout the day. So seems slightly easier. Still painful and I get tired more easily.