Stanford grad looking for a campus guest room - a few days each month

I am a Stanford grad who lives in Southern California, with plans to visit campus for a few days out of every month in fall and winter quarters. I would love to pay you a reasonable rate to stay in your extra/guest room for a couple nights each month. I am quiet, a non-smoker, and respectful. Happy to help with chores, pet care, etc. Please contact me if you have a room available that would work for my needs.