Do Nothing
Make today a lazy day and teach your dog that doing nothing is actually ok!
Dogs don't always need to be doing something or to be kept busy all the time! That kind of constant stimulation can actually create anxiety along with other behavioral issues. A chill day is completely healthy and beneficial for a dog as it gives them a chance to reset their brains and bodies!
So, how do I teach them to do nothing? Try exercises like "place".
Be sure to reward your dog when they're quiet and calm and avoid interacting when they are being wild or naughty.

Dogs of all ages should learn the art of doing absolutely nothing!