Get your chain, cassette and rings thoroughly clean - really, really clean. Use a minimum of lube. After every ride wipe all the muck off the chain. This will help keep the whole drive side clean and running smoothly. Search on here for "The Mickle Method" probably the best tip I've picked up on here. Dust your spare tubes in talc and wrap in cling film or place in plastic bag. When you come to change a tube at the roadside it will be easy to handle, the tyre will roll on easily and you're hands will stay clean. Clean your rims with white spirit after a ride.