I know the craft market can be tricky in winter since nobody likes to go outside, but you have a great idea with looking at B&B's and small shops for sales. Why not mail a sample bar of soap with a letter to B&B owners? The Wisconsin Bed and Breakfast Association (
http://www.wbba.org) has most of the state's B&B's listed. You might try the same with small craft and gift shops.
It's also probably not a bad idea to scout as many summer shows and fairs now. Then you can plan ahead and have stock ready. Also, many towns have farmer's markets; I've seen them advertised in Waukesha and Menomonee Falls (though it escapes me what days they're held on). Lake Mills in Jefferson County has a Saturday market in the town square, and I think they charge little to nothing to set up a booth.
Another idea is to just keep adding to your website. I didn't see images of your soaps and candles, those would nice. You have a great start, just keep it up!