Christmas is approaching fast so you're probably writing your present list and checking it twice. Well, if you've racked your brains and just can't think what to get the other half or the kids then let this classic ad spark...

One of the main features of Barack Obama's previous presidential campaign in 2008 was his novel tactic of getting the average American to contribute to his campaign fundraising. He engaged with the public on a level never witnessed before. Aside...