A pack of 6 wash balls that can be used instead of washing powder. Can be used repeatedly and last for ages. Only £5.95, eco wash balls usually cost around £25. Wash balls will save you a lot of maney in the long run and although I haven't tried this brand, I've found the ones I've used to be very good and have saved loads of money!
For some reason not showing on the ALDI website, maybe only available instre but plenty were available today in the Meanwood store, Leeds. Worth a look!