How do I get rid of super glue marks?
From the FAQ on the Gorilla Glue website:


  To remove uncured Gorilla Super Glue, use a towel dampened with acetone or isopropyl alcohol to blot the area. Several applications may be necessary to completely remove the uncured glue. For removal of cured Gorilla Super Glue from the surface of your project, soak bonded area with warm soapy water or acetone. The adhesive should begin to soften, but many applications may be necessary. Keep in mind that isopropyl alcohol and acetone can damage some surface materials, such as countertops and some plastics. Always test in a small, unseen area first.


Using Acetone or fingernail polish remover is a common suggesting for removing super glue type adhesives.  Of course, you need to make sure the surface you are removing it from will be safe from the acetone.