Our Walmart suddenly closed its fabric dept about a year ago and put in aisles of packaged crafting items, such as Martha Stewart wedding products and scrapbook items. Looks like you found a nice stash of fabric to work with. One thing I did find is that it is a good idea to pre-wash Wal-Mart fabrics to be sure that they don't fade or shrink. I bought some fabric once at Wal-Mart to make a quilt and when I started to cut it out, found it was really stretched off grain, too and I was unable to correct it to use it.