Did you know there are lots of different ways to put toothpaste on your toothbrush? Two recent attempts at our house include putting the tube on the floor and then stomping on it. This results in copious amounts of toothpaste wasted - much too much to hide.
Another way is to put the tube on the front edge of the sink and then lean your belly on it to squeeze the toothpaste out. This works better than stomping on the tube, but still results in too much toothpaste to use on one set of teeth. If you have friends over to share, this method might work.