Persil Washing Powder - £6.30 with S&S and Voucher at Amazon

Credit to ratfink for this

Price is currently £14 which is quite decent but Using 30% off voucher for first order and additional Subscribe and Save 5% takes price right down to £6.30 delivered, extra £4.49 delivery for non Prime members

4p a wash

Persil Non Bio Washing Powder is dermatologically tested and specially designed to be suitable for those with sensitive skin. Our Persil Non Bio Washing Powder cares for your garments just as much as it is gentle next to sensitive skin.