Castile Soap

I really need to make some soap soon. I have been wanting to make a Castile Soap (soap consisting of 60-100% olive oil) for a long time but time constraints with the move and other things keep getting in the way.

Castile Soap is an interesting thing, though. Some say it has to be 100% olive oil, some say you can add palm and coconut oil for better lather, or even canola oil for creaminess.

If I am able to craft this weekend I think I will make it according to this recipe:

90% Olive oil and 10% Palm oil

I hope it turns out nice. Has anyone else tried using a Castile Soap before?