sh*t! you never tell me anything!!!
Anyway here is some info -
London Gatwick – If the flight you have booked leaves London Gatwick before 08.30 (GMT), you can check in for this flight the night before from 20:00. This will give you the opportunity to leave your baggage at the airport. You will be issued with a boarding pass so you can go straight to security for your flight the following morning.
Checking in online means that you may only take one piece of hand luggage with you that should be no bigger than 45x35x16cms. If you decide to take hold luggage with you, you must check in at the desks as normal where you will receive a new boarding card.
So not much help really
I've just found this:
Can I check in for my flight on the Internet?
Question
Do you offer online check in facilities on easyJet.com?
Answer
If you make a booking for a flight for which you can check in online, in your confirmation email you will be offered the option to print off your boarding pass (you can do this up to two hours before the scheduled departure of your flight). Once you have finished printing you have been checked in and you're ready to go! (But be careful, you can print your boarding pass only twice!) You may only carry hand baggage, though; if you decide to bring hold luggage you must check in as normal at the desks in the airport.
1) we don't have the option on our confirmation e-mail to check in online and 2) it's for hand luggage only so it's not much use to use

