What are some effective ways to get rid of a double chin?

It seems like a double chin is one of the factors that makes you look older.
I feel at a loss as to what to do about my double chin.
Dieting simply to get rid of a double chin?
I find myself wondering if losing weight in that area will make me look slimmer.
What are some effective procedures for getting rid of a double chin?
Having a double chin makes me look plump and definitely older.
It's a bit bothersome. Of course, aging is natural, but still...
Or are there other effective ways to get rid of a double chin in everyday life?