The best preventative measure you can take is to wax and seal your car before winter. Do this in other months for some extra protection in keeping your paint clear. Even if you have your car waxed, road salt can remove the clear layer on your paint job if left to sit for long periods. It is crucial that you wash your car whenever the temperature gets above freezing. Do not attempt to wash your car in sub-freezing temperatures.
Matt Burne Honda can repair any paint chips that you might find and will help you from having to deal with rusted paint and parts.