take chain off and submerge it in a waterbottle full of undiluted orange degreaser
take wheels off
take cranks off and submerge chain rings in weak simple green solution
spray bottle full of warm 4:1 simple green solution, spray down frame from top to bottom and shop towels and brushes and whatnot to grime out of tough areas
spray bottle full of warm water to rinse off simple green
pull and clean BB if necessary (every few months)
clean wheels and cassette with SG solution, brushes and shop towels

slap it all back together, tune the derailleur a little and call it good.