Two words--Cruise Control. Doesn't help much if you don't know what the sensors are set at, however :(

For those of you that have in-car navigation, a buddy of mine has made the habit of setting each camera location that he passes as a "point of interest" in the nav system, it notifies him when he is 1/4 mile away from one.

Additionally, once you know where the cameras are, as long as you can slow down before the sensor strips in each lane (black, look like large chamfered squares), you won't set off the camera.