I have fallen once in 11 months. I never rode with anything but clipless.

My secret? I just make sure that I UNCLIP before I PUT ON MY BRAKES.

I also don't let myself get flustered easily.

It has worked pretty good for me... thus far.

Also, I have SpeedPlays, and the pedals are so easy to clip in/out of! (But I didn't get that kind of clipless pedal until March 2005).