I've managed to put the wife off of having one…so far. I think they are pretty rubbish to be honest – as pointed out above, a 'made up celebration'.
Oh and the Americans didn't pull us out of a hole, per se, in 1944; It got to the point that they couldn't keep ignoring the threat posed to themselves any longer (the idea of the Japan on one side and a totally occupied Europe on the other wasn't appealing, obviously, so selfishly – yes, it was selfish first and foremost – they decided to enter the fray) and thus, assisted an economic ally; remember most of their assistance was initially in provision of materials, way before they sent troops in. Also, the timing was futher influenced by the fact that economically they couldn't sustain a war in the early part of the war (Great Depression, New Deal, etc), and also the ever rising threat from Japan to their west, which would truly isolate them if left unchecked.
However, none of this is to say that their was not a sigh of relief when the Yanks joined in on our side, I'm sure.
A shame that they don't hold off a bit more these days…
I'm sure someone will find fault in the above, but whatever, already waaaayyyyy off topic.
I blame the yankification being brought upon us by baby showers… 😉