What's wrong with just folding the end of the tube and rolling it in (like a squeezing spiral)? I grew up in Easter Europe, we were always squeezing the toothpaste to the last drop.
It seems like I was spite down-voted for mentioning a hack that removes need to create an ever more plasticky device that is useless IMO and pollutes the environment and kills animals. Until we find a way to recycle plastic properly we should think twice about the lifetime of every plastic item we create or bring into this environment. Thanks for reading this.