Do you clean your oven and it still doesn't look like when they open an oven on a cooking show? Those ovens always look brand new. Of course they have a team of people who keep the kitchens pristine. If you don't have a team, then this is an almost effortless way to get yourself some seriously clean oven racks.
What you need: 1 gallon jug of plain cheap white vinegar ½ cup dishwashing liquid (I recommend Dawn) 8 dryer sheets
1. Line the tub with dryer sheets.
2, Lay the oven racks flat in the bathtub.
3. Cover the oven racks with warm water.
4. Pour the full jug of vinegar into the bath along with the dishwashing liquid and let them soak overnight.
5. Rinse and wipe the oven racks with a clean cloth or the dryer sheets the next morning.
Without harsh chemicals or elbow grease this should solve the problem, and you won't have to be embarrassed to open that door.
Source: Excerpt from Debra Johnson of Merry Maids