What do you do with the remnants? Throw it out like I did before? But now I'm sure when you read my message - no one will throw away the remains of soap, but rather collect them in a jar to make the most excellent liquid soap without any troubles.
Collect soaps of soap - you will need some time to accumulate a sufficient amount. Rub into small pieces with a grater. Get a bottle for liquid soap with a dispenser, pour lemon juice into it, then a cap of glycerin. Lemon juice (from 1 h spoon to half a lemon), 1-2 caps of glycerin. Put a bar of soap into the bottle and fill it with hot water. Put the bottle to infuse for 2-3 days, before use, shake.