Lisle 29100 Quick Quad Pad Spreader
 

A couple of members have recommended in the past. I picked one up last winter and had my first chance to use it, changing front pads on my TSE BBK (with Dynapro calipers). What a revelation! So much easier than levering multiple times with a screwdriver and trying to avoid scratching the rotors. Highly recommended to all track rats with fixed calipers.

It's like a trigger clamp in reverse. Neat.

Added it to my wish list on amazon. Another tool that will make one small job easier and faster.