On My Soap Box

What exactly is a shampoo bar? Are there different kinds? Why am I struggling with my shampoo bar? How can I make a shampoo bar work for me? Are there plastic free alternatives to a shampoo bar?
What exactly is a shampoo bar? Are there different kinds? Why am I struggling with my shampoo bar? How can I make a shampoo bar work for me? Are there plastic free alternatives to a shampoo bar?