I just discoverd something that works very well for label removal and without the stink of ammonia. I tried so many house hold kitchen cleaners and eventually moved to my wife's laundry chemicals. She has a stain booster called Biz. A scoop of this in the sink with some warm water and about a 1 hr. soak and I litteraly had labels falling off. The most work was taking a dish rag and wiping off the small amount of adhesive that was left behind. I have also read of other guys using oxiclean but I have never tried that.