I am not a Wal-mart fabric snubber. Some in my guild poo poo it but then I have to remember they are shop owners. The fabric companies that provide W's fabric are also suppling quilt shops but not with the same designs. One of my fave things about Walmart is they monthly pattern and fabric projects. The patterns are free to download off the internet and then you can buy the fabrics much cheaper then their regular fabrics. You can make a full sized quilt for under $30 cost for the top and this makes a great quilt for charity give away.
http://www.aenathan.com/index.php?tmpl=quiltofthemonth