Drip pans, those lovely little round things that are on your stove under the burners. Not all stoves have drip pans. If your stove does have drip pans here are some tips to clean them.
Soak them in the sink with some warm soapy water. A dish soap with degreaser works great after about 15 minutes most of the gunk will come off easier. You can also soak with vinager and baking soda. This works best if you leave it over night or even all day while at work. Throw them in the dishwasher. The hot water cuts through most ove the gunk and the jets really help with breaking down the other gunk.