red juice
There is a product called 'red juice' available at the clean team. Go to google, type in 'red juice' and it will come up at their website. Available only in concentrated form. You get a spritzer bottle, fill it up with water, but leave about an inch to inch and one half space for the red juice concentrate. It's works well on hardened fingerprint marks and grease on cabinets and elsewhere. I used it to clean the backsplash console on my 1961 g.e. tol stove. It had painted blue and white background on the glass, but the clear portions were so covered with aerosolized grease, you couldn't see the clock. I just sprayed it on, rubbed it with my finger, and rinsed with half and half, vinegar and water, to remove. Best and most gentle cleaning agent I ever used.