I've been wondering how much weight you all feel you need to gain or lose to actually go up or down a size? I'm usually able to wear most of my clothes if I stay within a general ten pound range. But I think if I gained more than about five pounds, I'd would definitely have eaten myself out of my clothing collection. I know this is sort of a frivolous question...but let's face it, a lot of us have a big collection of jeans that cost hundreds of dollars a pop, along with all sorts of other great items, and it would really suck to be unable to wear them (in some cases, even if we're LOSING weight!) Opinions?