I've found this moth and I did some research and I'm pretty sure it's part of the Gracillariidae family.
It's colours are made for it to look like bark and it's really small, about the size of a thumbnail including wingspan.
It almost looks like a stick insect with two straight wings that stick out on either side. Each wing is longer than it's body and it's got spines on the end (for camouflage).
It also never puts it's wings away, they are always stuck out, but I'm not sure if that's down to it temporarily being in a tub as to on wood.
It's antenae are short-ish and go forwards and it has really long skinny legs. It's abdomen is also curved upwards.
It looks allot like this http://www.norfolkmoths.co.uk/photos_micro/active/3130.Trevor_and_Dilys_Pendleton.1206915502.jpg
but less colouration and it doesn't have red eyes.
I'm sorry I can't insert a picture, I don't have a good enough camera.
I'm not sure if I understand what you mean with "two straight wings that stick out on either side". If you mean that it is holding its "thin" wings (actually folded together) straight out (i.e. orthogonal to its body) it might imply that it is some species of Plume Moth (Pterophoridae). See http://en.wikipedia.org/wiki/Plume_moth.
I also don't really grasp what is meant by "it's got spines on the end (for camouflage)"
I'm sorry if I didn't make sense, I was just in a rush typing it as I was wanting to let it go pretty quick.
But the link your provided about the Plume Moth was awesome! I know what the species was now, there were a picture on the Wiki page. I saw a Brown Plume Moth.
Thanks for the help and for quenching my curiosity
Hello, Impossible to say without picture. It's a micro. Go to UK moths, type in 280, and then click on 'next species' for the next 100 or so! You'll eventually find an exact match.