If your oil light came on you should have stopped, opened the bonnet, pulled out the dipstick, wiped it clean on your pants, stuck it back in, waited a second or two, pulled it out and see what the level indicates. There are marks on it indicating the level and if there are no oil showing on the dipstick it means there is very little oil left in your engine, which is a very bad thing. Drive slowly to the nearest petrol station (if it is reasonable close by) and let them fill it for you. Now let them check your oil each time you fill up, your car deserves this....if it is losing oil but your driveway is still sparkly it is engine related and you are heading for a rebuild soon (your engine is worn out) or if there are huge oil marks where your car is dripping it is probably a seal or a gasket that went (again your engine needs attention), in both instances you can get away with just pouring in more oil, but in the end taking it out and fixing the problem is where you are heading.
GO home and offer a smallish chicken to the gods as penance for not letting the petrol station guys check your oil......
If you kept driving and then ALL the lights came on, then I am sorry, no size chicken will help you...let us know how it went with the oil (and the chicken if you want to)...
