Because I tested it locally with my cache folder open - the cookie didn't expire, and I will still able to access all the site's functions. However, many MANY good ideas have been brought up, and I thank everyone for your input. I think I will end up combining many facets of these suggestions to find a solution. Thanks a bunch!

r. j o s e p h
"Violence is a last resort of the incompetent" - Salvor Hardin, Foundation by Issac Asimov