Today I am expecting delivery of some soap nuts I purchased from Earth Conscious Mum and Bub. Soap nuts (or soapnuts) are a berry which contain about 12% saponin, which is a natural detergent. You use them for washing clothes, among other things. You put them in a little wash bag and use 6-8 nuts per wash, and they can be reused about four times. The Soap in a Nutshell website reckons it costs around 9c a wash when using soap nuts. Cheap AND chemical free – I’m looking forward to seeing how effective they are on my household’s washing!
I might also have a go at using them as shampoo.