Prices cooks candle lit before you start cookingdoes the trick.I had a job to find them after reading an article about how good they were but Lakeland Plastics do them and I got mine through the internet as we do not have a shop near to us.
Ohh! A bowel full of vinegar - made me shuffle in my seat :-)
Never really had a problem as long as the fish was really freash. Kippers can be a bit smelly but always found that doing the washing up fairly quickly solved the problem.