I don't use any degreaser; at this time of the year with wet salty roads I take the chain off several times a week, I lie it on top of a drain and give it a good blast with the garden hose, it then gets dropped into an open top plastic container and left on the radio to thoroughly dry over night. Pop it back on the bike next day, drop of engine oil on each roller and its good to go. I get as good a mileage in the winter as I do in the summer.
Its on the radiator now so I'll get some pics and see how clean it looks.
not as clean as I thought it might look (cameras pick up too much detail) But in fairness this chain has done about 1200 mile since 22nd Nov on wet dirty salty roads, about 0.75% wear - not bad for a £3.99 chain that is cleaned with nothing more than a hose pipe.