The Jim Dunlop Orchestral String Instrument Polish & Cleaner is the ideal daily-use cleaner and polish for all modern violin, cello and violin finishes. (Not for use on French-polished or shellac finishes, found on some antique instruments.)
Just spray on and wipe off to immediately remove grime and fingerprints, while leaving a micro-thin protective layer that won't build up. It comes in a 2 oz. pump spray.