asdas own make bio wasing powder in green 10 standard washing powderonly 50p in my local store. worth a look if your going.Theres also arial fabreze at £1.00 as well.
I always use this stuff. I get the 3kg for about £1.60 It does about 40 loads. We use about half the amount they say you should and the clothes come out fine. Unless your clothes are realy dirty this stuff is fine.
This stuff is probably a brand name in asda packaging i doubt there's a factory just to make crapy washing powder.
My wife used to work in a plant that made cleaning products, youd be surprised how many budget products are exactly the same as their expensive cousins minus the box.