I have bluetooth in the car and the iPhone does a brilliant job of bonding to it, sometimes to good :)

But I work IT breakfix, I am often in a position where I need hands free and want to use the headset that comes with the phone (cannot stand the blue tooth headsets) but when I want the corded headset when I drag it out of my pocket it is in a 10 minute to untangle mess. Any suggestions?

BTW the too good a bonding to the car, at home in my office, near my garage,  my car electrics stay live for 30 mins after I take the key out, if someone calls in that 30 mins the car grabs the call and I get nothing on the phone, Toyota add Bugger.