I have had my 2008 STS for over a year and it has always bothered me that there is no ignition key and that if I lose the fob on one of my many long trips, I am screwed. I have always hidden a key on my cars and believe me, I have had occasion to use them. I have found a solution that I would like to share: I took my spare fob, took the battery out so the car would not recognize it, and hid it and the battery inside the car. Then I went to have a key made for the door. Naturally, it is a special key and your usual key makers (KMart, Walmart etc) do not have a blank. The dealer wants over $60.00 for one. I went to a local lock shop and he made a key that fits. Took a little fiddling, but he did it $3. Hid the key in a magnetic holder under the car. Now I am set for the worst.