Aww shit, a year while ago, I tucked a bottle of my fav fabric conditioner down the side of my washing machine to hide it from my teens who think nothing of using it by the pint and I've only just found it. It's turned really thick. Like, really, really thick. You can't pour it out of the bottle any more. I tried diluting it & shaking it but it's still super-thick. Do you think it's salvageable? It's kind of the consistency of margarine. 
Still smells nice..