I've been asked lots of times what clay do I use, and how do I clean myself and clay covered bathroom afterwards? This video answers these questions so I don't have to anymore

Clay is messy and I've found that it does stain the grout between the wall tiles and the sealant around the bath. Bear in mind that, whilst this is acceptable to me (I can always redo the sealant etc.), it might not be acceptable to you! So only do what you're prepared to tolerate!