What if the toothpaste holder can't be taken off?

The glue removal method can turn the hot air to the maximum power with a hair dryer, and then continuously heat the glue on the shelf to soften it. After softening, the wallpaper blade slides slowly along the gap and alternately removes the partition bit by bit.

Will leave traces of glue. You can dip a piece of cloth in vinegar to cover the place with shelf marks, and then gently scrape it out after the sticky stains on the shelf are completely soaked.

You can also try to wipe it with a small brush or toilet paper dipped in some oil (preferably engine oil, not vegetable oil).