We stay at hotel airport, take breads and cheeses to eat for dinner in our room that night. Then we have the hotel buffet breakfast before heading to check in (usually stay at Hilton but this year changing to Radisson Blu).
After check in and security we have a wonder through duty free and never buy anything! We then head to WHSmith to buy a magazine and some snacks. Then grab a coffee, go to the toilet loads so we are less likely to go on the plane and the hang around by the gate ready for boarding!