Dry day today, so I drove off to realise I had left a patch of some sort of fluid. It's really clean though, but not water.

Anyone have any idea what it could be?

It's coming from the passengers side front. Can't have a great look until tonight as I was in my work suit, by which time it will be dark.

If it's on the passenger side I'm going to have a 'guess' at gearbox oil. Only way to find out is to get under the car and have a look around.
Gearbox oil usually has an eggy smell to it.

Yes defintitely has an eggy smell, that's what my girlfriend described it as.

most likely the driveshaft oil seal

Are these cheap fixes?

oil seal is cheap enough, If you are handy with a spanner then an easy fix

Sweet! Will have a look at the weekend, but will drive the crappy Focus for now.