Looking through my database . . .
Can't name just one.
10 Minute Solution Target Toning with Cindy Whitmarsh
Crunch Pick Your Spot Pilates with Ellen Barrett
Leslie Sansone's
Start Walking (Heart Association)
Lotte Berk: Basic Essentials
Classical Stretch with Miranda Esmonde-White
I'm proud that in the last 2 months I've tried more new workouts than I did in all the rest of 2012, but most of those have only been once or twice. So far.