There has been much talk recently about electronic health-care records. Imagine that whenever you go to a health-care provider, your health-care record is available to them, thereby enabling them to give you better care. There is a lot of controversy about the implementation and the privacy concerns and policies surrounding such records, but ultimately this will happen.
I'd like to propose a simpler and much less controversial idea. Last time I went to get a haircut, I realized my hair dresser had no idea about my hair history. She didn't know when I had it cut last, how short and what style I asked for then, and whether I liked the result or not. And being a busy guy, I couldn't recall all the details myself either.
So why not create electronic hair-care records? Every time you go for a haircut, you get before and after pictures, with a time stamp, and a few comments attached from the hair dresser. Now you can take this record with you wherever you like and next time you come in the discussion can focus on more important issues.
There are more benefits. You can highlight a particularly good haircut and always ask the provider to mimic that. If your hair is especially challenging (in a good way), you can auction your haircut to a hair dresser who wants to boost their resume. If you're anywhere in the world, say, Patagonia, and you feel the urge for a haircut, simply whip up your record and no words are needed. After all, hair is a universal language.
Technologically, building these records is simple. We just need someone with the right entrepreneurial spirit.