Surf Essential Oils Powder (eg.Lavender & Oriental Blossom) 50 Washes (4Kg) - Half Price £5 at Tesco
Seems a good price - £9 at Asdahttp://www.tesco.com/groceries/Product/Details/?id=266950297
- Website link (think you need to login to view their groceries section though). Seems to be the best price on any laundry powder. I'm sure I can remember much better deals on powder even a year ago, ach well.