Well there is a point.
In drycleaning you have 2 stages, cleaning and finishing.
First you clean the garment (now it is clean)
Then you have to dry, press and package the garment(this is finishing)
Phil 2:12 Therefore, my beloved, as ye have always obeyed, not only in my presence, but now much more in my absence, work out your own salvation with fear and trembling.
Phil 1:6 being confident of this very thing, that He who hath begun a good work in you will perform(finish) it until the Day of Jesus Christ.