First, use essential balm, pour essential balm on the soft cloth, and directly wipe it back and forth on the glass door to remove residual glue. Second, use alcohol, as long as you put a proper amount of alcohol on the soft cloth and wipe it after it is completely soaked. Third, use a hair dryer, turn on the hair dryer and blow directly at the residual glue, until the residual glue becomes soft and then tear it off by hand.

You can also use hydrogen peroxide and wipe it repeatedly with a towel dipped in hydrogen peroxide, which can basically remove the residual glue.

It's best to tear the advertising paper slowly, so as to take away most of the glue. If you tear it too fast, not only the glue will remain, but also the paper will remain.

It is not recommended to scrape with a knife or wipe with other hard objects, which will not only completely remove the residual glue, but also scratch the glass door.