Maybe it's because I'm a bargain shopper, but I think $7 is enough for the robes. With that being said, I'd start with $10 and reduce it if needed. $3 for the undies sounds good. I have never sold food at a yard sale, but it's worth a try. I do sell a lot of cleaning supplies, and cat and dog food/treats. People snatch it right up, and I have to go scrounging for more in the closet.