While it seems a bit counterintuitive, I try to stick to liquids for travel. Here's why: when you put a bar soap away wet it gets all mushy and gross. Liquids at least maintain their intended consistency.
That said, this worked well for the short time I was able to use it, and if they had a liquid version I'd be happy to give that a try as well.
Also, love the double entendre in the name, now make a liquid version, FFS! :)