I may have mentioned this before, but I derive a strange joyful satisfaction from using something up completely or wearing something out until it fails, and also seeing how far I can stretch something out. I am nearing the end of my current tube of toothpaste and I am already anticipating the last squeeze I can possibly get out of it.
You squeeze it and then cut it open, riiight?
I don’t need to, I can typically get several more brushing out of the tube after I have flattened the body of the tube by working my way around the collar (I use an electric toothbrush so use only a pea size per brushing, it takes me a looong time to empty a tube of toothpaste). Then, once that method yields no fruit, for the final brushing, I press as hard as I can on the center of the neck, and actually dig the toothpaste out of the end with my toothbrush.
For my art paint tubes, which are still made out of aluminum, I have a tube crimper and I basically use the same method, but get the super gratifying satisfaction of periodically crimping the tube from the bottom and squeezing all the remaining paint up to the top of the tube. For expensive pigments I will cut the tube open, just in case there are some dregs left, but usually there is not much left at all, it typically isn’t worth if for oil paints, but watercolours can be enough to use for a painting.