HAL9000 Wrote: ------------------------------------------------------- > If you have an older petrol-driven motorcar, you > could use them as a fuel additive - they're mostly > ethanol based (100ml per full tank should be ok). > > Alternatively, they could be mixed with an equal > volume of water and used as screen wash. > > Or, they can be used neat as windscreen de-icer. Well that's novel and practical! annaj, I know you said: "... but I don't feel like I could give them away, because about the first 10mls has been used. Also, they're old, maybe about five years old, so I don't know if they will have gone off.", but I'm sure that if you offered them for free in the "for sale..." section stating this, you would have no shortage of takers...try it...and see...otherwise, the cheap petrol thing sounds like a good idea!