1996 Caravan Windshield wiper removal.

I'm having trouble popping off the wipers. Is there a special technique or tool to make this job as simple as it should be?

Are you trying to remove just the wiper blade or the entire wiper arm?

The whole wiper arm...
It's sitting on a splined shaft -- and I was wondering what the technique is to pry it off?

There should be a little lever on each arm that you pry open with a flat head screwdriver. Then with some persuasive back and forth movement you should be able to get it off.