Empty plastic tubes
At the latest when z. If, for example, the toothpaste tube is already half empty, I had to notice again and again that when the tube is squeezed, the contents keep running back to the end of the tube. This means that the respective tube is never properly emptied.
With a conventional freezer bag clip, which is cheap to buy in every supermarket, I have solved the problem forever. If necessary, open the clip briefly, push it towards the tube opening and close it again. Thus, I prevent that the content comes back when expressing.
The complete emptying, by cutting the tube, was already listed here by another contributor in his post.
