Have to give this some thought. Some of them are 'work' jeans and some are 'office' jeans. And possibly a couple of them don't fit anymore, if we're being really honest. And the fancy ones with the designs and beading that I spent a bunch of money on are now my least favourite jeans. i.e. I never wear them.
I need to get over the 'I spent a lot on this, I can't just toss it now'. As Leo Babauta says, I've already spent the money, I can't get it back.