The Wii Remote acts as your Pom-Poms and you shake them to energizing music.
Purple and violet are energizing colors.
A.M. and P.M. Yoga for Beginners features a 20-minute energizing morning workout and a 20-minute relaxing evening workout.
Upward Facing Dog Pose - One of the many energizing poses in the Sun Salutation Sequence.
Several yoga DVDs feature short yoga segments--use these to come up with energizing morning sequences, such as sun salutations, and relaxing evening sequences, such as restorative poses followed by meditation or relaxing in corpse pose.