CottageLifer

I've read the zillions of posts of RVR/OS keys and was hoping someone might confirm my understanding. My 2011 uses the std. 2 button fob - no FAST. I want an extra key so that when I go riding I can slip a key into the pocket and not have to carry the whole set with house keys etc. Will a regular steel blank get me into the car? Or will that set off the alarm? TIA!