We had casual chapter the first meeting of the month, after that it was badge attire (though this was stretched into business casual occasionally) and then when we had national visits it was FULL badge attire (no lienency). Obviously we wore our magenta catsuits for rituals.
The chapter I'm advising now kinda does the same thing, but they are way better at dressing up than my chapter was. I think that is partly due to the whole east coast thing vs. liberal - liberal arts school in the mid-west.