For me. It's Valobra Menthol. Although it's not heavily mentholated. This soap provides such a rich, slick cushiony lather with very little effort. And at $12 for 5.2 ounces. You can not go wrong! What's your one soap/cream you can't live without?
Any of the Stirling Glacial Soaps. Wintergreen, Spearmint! Stirling Glacial Obsidian. I don't have it yet but I will get some of it. If it's anything like the Wintergreen look out.
For me it would have to be Martin De Candre. Lathers up like nobodies business and the scent is just so very pleasant.
Soap: Mitchells Wool Fat Cream: TOBS Avocado Croap: Proraso Red Tub Sorry - just cannot pin it down to one.
I can live without any soap but if I had to pick one soap that I for now will always have on my shelf it would be 3P. I love that soap.