...or fly with someone who includes water as part of the package. But I agree, British airports are a disgrace. Their pernicious greed starts before you enter. Every single square foot is considered to be an opportunity for them to screw you out of a few quid and these filth don't care how they do it. They will use anti-terrorism legislation to get your car registration so they can fine you for parking in restricted zones. But everywhere is restricted except for their paid car parks. So, if ever you have the chance, make sure you get one in.