Being that we've never been to Hawaii before, what kinds of things should we pack? Is it pretty much always shorts and tank top weather, maybe a light hoodie and jeans in the evening? We'll be there for 8 days, probably doing a bunch of different things. Should we be able to get by with mostly casual clothes? We aren't the type that go clubbing or out to fancy dinners for the most part. Mainly just hit up bars in the evening, sightsee in the daytime.