Originally Posted by
PanGalactic
Just go and pick someone up from the airport and have a coffee while you are waiting for them.
The car park and coffee will easily come to £10, if not, grab a bag of crisps from M+S or a magazine from WHS.
No need to be airside, pretty much all spend at any BAA airport counts.
The T & Cs state that the £10 must be within one transaction, not across multiple...so that's either a lot of coffee or an extra few minutes in the car park.