Check out this post at Koupon Karen about making bar soap into liquid soap. I have some bar soap in my closet that I got for free with coupons, and I will probably never use it. So, I thought this was a good idea. Plus liquid hand soap can be really expensive and it seems like I am always out! And, if you are like me and have a billion tiny bars of soap from various hotels, this is a great way to use them up!