Originally posted by Captain Strange Er, buy a dishwasher
Still, even with a dishwasher, one must take care not to just chuck meat or poultry fat down the sink. Wipe it out with a paper towel and throw it in the trash. That's much better than lining your pipes or your arteries.
Dawn dishwashing soap cuts grease like a demon. They even use it to clean waterfowl inundated in oil spills.