There is nothing that speaks of bicycle care in my opinion as a sparkling clean cassette. I noted the other day that the bicycle mechanic who does the work on my bicycles had an incredibly clean cassette. I asked him if he removed it to clean it to which he replied in the affirmative. I bought a chain whip lock ring remover, and removed one of the cassettes from one of my bikes yesterday and cleaned it. The results were great, but it was a messy experience. I thought perhaps a small parts washer would be the way to go. I know the endless techniques for cleaning cassettes on bikes, but I direct this to someone who uses a parts washer of some type, and cleans their cassette off the bike. What do you use? I'm looking for ideas. Thanks.