Have you every taken off the knobs on your stove to clean behind them?
All you need
Easiest way to clean the knobs is to let them soak in the soapy water while you are cleaning the 'dashboard' of your stove.
Soak one of your cloths in the soapy water, wring out and wipe all along the 'dashboard'.
Grab your toothbrush and dip into soapy water and use on areas that are built-up and lightly scrub
Re-soak your cloth in soapy water and wipe down again to remove all build-up
If this does not remove any grease build-up this is where your baking soda come in (It should be stored in a large mouth jar for easy access). Dip your damp cloth into the baking soda, give it a little shake and then with a circular motion, use your the area of cloth with baking soda, to remove the grease build-up. If it is in an area where the cloth can't get at, dip your damp toothbrush into the baking soda, give a little shake and gently scrub the area. Repeat if necessary. Re-soak your cloth in soapy water, fully removing the baking soda and return to the 'dashboard' to wipe down and remove the baking soda residue.
With your clean dry cloth, use your glass and hard surface cleaner or spray bottle of water to polish.
When you stove 'dashboard' is clean and polished, reach in to your sink or bucket to retrieve your well-soaked knobs, one at at time and using your wet cloth, wipe away any debris or build-up, polish dry and put back into place on the 'dashboard'. Repeat with each knob.