Do you know that feeling of seeing something in a store and you don't really pay attention to it, and then you go home and it flicks back in to your mind and you all of a sudden want it even though you don't really remember how it looked like exactly? And it becomes some kind of obsession. You go back to the store and see it and it is either worse than you tought it would be, or better.
I have that exact thing now. I saw a dress and I was like, Oh is nice but not fantastic... But In my mind it began to grow and now it is something I have to have to wear this christmas.
Gonna buy it in half n hour though.