I unwrapped it and set it on a towel, then cut it into blocks. I have 24 blocks of varying sizes, plus a small sliver I cut off to "test" it out.
I tested the sliver at the sink and it was perfect. A nice soapiness (and I read that this foaming will increase as the blocks dry harder.) It left my hands feeling squeeky clean and smelling like lemon. I am calling this a success! Now I want to try some lavender bars.