One of the things that worried me about coming back to Oregon after spending the summer in NY was whether or not I'd be able to break the habit of running red lights.
I've posted about this before --how Portland is a little uptight when it comes to such things. Here you will get called out by other cyclists, motorists, --lots of people feel it is their place to be your mother.
Whereas in NY the modus operandi of virtually every cyclist amounted to, to quote (I think) Lucas Brunelle, "there is no law but the laws of physics."
Anyway it hasn't been difficult at all. Sure every once in a while I get all excited and pretend I've a direct rush to W. 27th and I've got to make time, and then I run a few reds. But on the whole It has been very easy to just adapt to the p-town culture and wait for the light like our four-wheeled friends.