Pre-round Stretch Tips for swing

This year with my gym commitments I tend to have a stiff lower back to start off every round i play.. I've done a few different minor stretches to help try and eliminate it, but they don't work to well. At the range before my round plus my first hole or two are effected by this, as i can't get my normal swing pattern cuz i feel so restricted.

Anyone have a few stretch techniques for me to try??

Thanks, Lange

If you are not doing any of these,I'd start using these daily.

http://www.my-physical-therapy-coach.com/low-back-exercise.html