You're not going to get any sympathy for 20 and 30 degree weather just as I don't expect any sympathy from the northerners.

I guarantee the northerners would love some 20 and 30 degree weather around this time after their body has had time to acclamate (sp?) to the colder weather.

In all seriousness, I use UA cold gear with some fleece and a medium weight camo. I am fairly warm blooded and don't need a ton to keep the body warm. I do use the hand warmers for boots and hands to keep warm if needed. I do have a set of Columbia galatin wool bibs and jacket along with some artic shield boot insulators but haven't had to use yet although I didn't get out in the 8 4 degree weather we had late last week.