Here's another tip related to machine quilting: Once your quilt is quilted, you need to trim the outer edges of the quilt and then sew on the binding. When you trim, leave about 1/4" of batting and backing fabric beyond the edge of the quilt top itself.
The raw edges of the binding are placed next to the raw edge of the top. The extra batting and backing will fill the binding nicely.
I like to "sign" my quilts as I quilt them. I load my machine with a slightly heavier thread (like King Tut) in a contrasting color. I do my best to capture my actual signature. I do also sew a documentation patch to the back of the quilt.