Thanks to all of the wonderful listeners who called or emailed with suggestion for me to stop my kittens, Finn & Flora, to stop chewing on cords and climbing our Christmas tree! ~Murphy
Some of your suggestions:
Bitter apple spray for cords
Wrapping cords in aluminum foil
Putting crumpled newspaper or aluminum foil under the tree
Shaking a can full of pennies at them when they try to climb the tree
...and many others!
Here's a couple of great links as well: