I'm my nicer things on eBay and getting some decent money for pretty much everything. I've also started a box of just winter clothes and I'll eBay those next fall when the season is starting up for those things. I figure it will go toward my new *smaller* wardrobe or our trip next year. Every little bit adds ups.
I also agree with sending them over to a consignment shop, especially if you don't have the time to take good pics, write descriptions, etc.. for eBay. Unfortunately the good local shops take 60% and most of the time their prices are almost as high as a good sale so people are not shopping there as much.
GL with your sales and congrats on the weight loss!