Avoiding catching colds? Tips wanted

Vitamin C was burned into the conciousness of the West when a scientist "conclusively proved" that vitamin c reduces colds via a side observation oh his studies of scurvy back in the 60's or 70's. Since then i think scientists have agreed he was an attention whore and his evidence was non-existent clap trap. But lo and behold, everyone believed it and still do and the drug companies are more than happy to let it run and encourage it.

I might i have made all that up, but it's what i remember of a documentary on the very subject.

I think however colds are genetic, depending on your immune system. Some people are able to deal with the virus some are not.
I never get colds, which is awesome, just wanted to say that :D Sry to those who do.

Yeah but no one has so far been able to provide links to any studies for or against. Useless googlers.