I had what I think is a bit of a result yesterday, I phoned my local Asda pharmacy section and asked if they could get me in some Videne Antiseptic Solution, they got it in sameday and this morning I collected 2x 500ml bottles for £4.41 each. Bearing in mind I dilute this down 2.5ml in 2000ml water each bottle is good for 400L (if i've done my math correctly :? ) so I should be OK for quite a while to come.