Dogs need to be challenged! Much like people they get bored and when bored they can form destructive behaviors. My dogs luckily don't destroy anything, but they can drive me crazy by chasing their tails, obsessive licking, and jumping in place. In addition to exercise I decided to get them some games to play and so far so good! Check out this video. Caesar also has some great tips in this article.
My poodle, Bebe, in the video figured out how to pull open the drawer after 10 minutes of working with her. The game has other obstacles that you work up to. The Treat Ball is pretty awesome too. Kept my dogs busy for like 30 minutes as they rolled it around and tried to get the treats out of it. Definitely worth it!!!