Instructions:Here is a great code which will give you a 15% discount off your first online order @ Ocado groceries. I've just done a test shop and this is working, unlike many of the other Ocado codes which float about and that are user specific.
I'm not sure of the specifics of the offer, but my test shop seems to indicate that the minimum spend is £40, but the max discount you can claim is £15, in that order.
Hope that helps!
P.S. If you are spending more than £75, add the code COU0985977 to get a free bottle of wine *