With homemade soaps it is important to ensure they are allowed to dry in between use.  (soap not included)
 
The natural glycerine in homemade soaps attract moisture, and if left sitting in a pool of water on a shelf you will end up with a bid soggy mess ......and your soap will not last as long as you woudl like..
 
If you dont have a rack to drain your soaps, maybe try and stand it on the edge so that the main surface of the soap has a chance to dry....or grab a soap rack!