I agree with the yard sale. Also my quilter guild allows you to bring unwanted quilting/sewing goods in to sell, (rulers, books, fabrics, UFO's) its really fun, we all know the fair value, so their is no haggling, you may get a better price than haggling at a yard sale, this way you could find a new home for other things she has excess of books/rulers etc, no postage problems to deal with. Good luck with it all and all the best to your MIL.