Getting a chain cleaning tool like Tigermom is probably a good idea. You don't want to get degreaser on your paint. If you have an REI near you, you might want to look into their comprehensive bike maintannce class. In the 5 hr class they teach you everything you need to know to do a bike tune up: adjust derailleurs; true wheels; adjust and replace brake and derailleur cables; repair flats; clean and lube chains; wash and inspect your bike; clean cassettes; etc. It's all hands on--you bring your bike and perform all these tasks on your bike.