what is a good grease cutter?”
First remove as much as you can of whatever is “loose” that you can remove by vacuuming or wiping. Use an electric pressure washer to remove what it can. http://www.amazon.com/s/ref=nb_ss_gw/102-3416658-5047323?url=search-alias%3Daps&field-keywords=electric+pressure+washer Electric pressure washers are pretty good at cleaning larger areas and loosening up dirt/grease. Then use a small steam cleaner to remove what it can: http://www.amazon.com/s/ref=nb_ss_gw/104-9430251-1443944?url=search-alias%3Daps&field-keywords=steam+cleaner (not the carpet or floor ones) Steam cleaners are good for cleaning small areas and removing some stubborn stains. Whatever is leftover will either take soaking in chemicals or sc