I only handle juice once a day. Some suggestions:
-Handle juice once a day, prepping your cartos, tanks whatever ahead of time. Can't do this if you drip into an atty, though.
-Clean the PV with a damp rag and polish off with a dry rag every day. It's surprising how much juice can lurk on the outside of a PV. Clean cartos, tanks, any other hardware the same way.
-Wash your hands thoroughly with soap and water after handling juice, even if you don't think you spilled any on your hands.