WOW, what a great present your sister gave you. My sister used to give me her fabrics that she didn't think she would use but thought I might. Then when she passed away I inherited all her fabrics. Regrettably, shortly after that we had to move and downsize from a 3 bedroom house, where I had 2 sewing rooms loaded with fabrics to a 2-bedroom apt.; so I had to purge nearly 50% of the fabrics; however, I gave them to my quilter friend, who then passed on what she didn't think she could use to another quilter who made quilts for children in local hospitals, so I'm sure it will not go to waste. Also, when making a family reunion quilt, incidentally in honor of my sister, I called my friend to ask if she still had a particular fabric, as I thought it had enough yardage to make a backing, it did and she told me she had set it apart as she thought I might use it some day. She's a very good friend.