I separate by body part. I have a jar of arm hair. I have a jar of back hair. I have a LITTLE jar for eye brows.
Did you get an education?
The answer is in his profile.
It's not a fortune, and you can only do it every so often
An old saying but very true is that women are sitting on a goldmine. So selling their hair to blacks is a pittance compared to what a woman needing money could make. Also I think Asian women dominate the market selling hair to blacks.
While a good wig, hair extension, or any other form of hair can be expensive, without the means to transform your cut hair into that form, you will be out of luck. Add to that that not everyone's hair can be used or is even desired, that cuts a lot of people out. And then it can take a year or longer to grow any decent amount of hair to cut, transform into a product, and sell. >$50-100 every couple of years is by no means a fortune