What do you guys do for cleaning the engine bay and what do you feel is the proper way to do so? Was going to go down to the coin operated car wash that offers degreasing and give her a quick makeover. Figure covering the intake, being easy around the battery, alternator and fuse box and should be good-to-go. In the past, I've done this with the engine running. What do you all do and any additional pointers and tips?