This is a huge money saver as well all know how expensive this is. You can buy really nice homemade soaps for around $5-7 a bar and it makes two liters of body wash. You of course can use cheaper bars.
You can add colour and scent if you like. I don’t find I need to with the soap I used.
People ask me how I store my scrubs I posted the other day. I use these Tupperware squeeze bottles that are kept upside down in the shower (they are normally used for condiments).