a lot of people will be heading off on overseas holidays at the moment and wanting the best exchange rates and credit card offers, I'd have always said 'Naitionwide' a year ago, but it charges for non European countries, where as the Post Office is still free for credit card purchases abroad and as far as I can tell that's any country, not just Europe!

for more information about 0% commision on overseas purchases, check the website: Post Office 0% Credit Card - Travel Features

this may also be very handy if you do a fair few foreign purchases online, so not just holidays!