Paper towel- wiping first is logical and makes less work for the soap, but you get your hands all dirty.
Soap- has degreasers built in anyway and readily accessible
Ammonia- sounds interesting, but could be more hazardous (smells, kids)
The wife- (ALOL cuz I choose that method sometimes!)-still takes away time from household
Garbage- waste of money
Dishwasher- sounds most efficient (1. if you have one, 2. Does it affect other dishes washed at same time?)
Conclusion: Dishwasher if you have one, otherwise soaking in soapy water.
p.s. Ammonia may be my method of choice once I try it