I leave on Sunday for a business casual dress business trip to New Orleans. I need help with my wardrobe. First, I am planning on packing several sleeveless items. Would this be appropriate for the weather there this time of year and for that business casual environment (am also packing a light weight black cardigan to layer). Secondly, I am planning on packing a pair of open toe slingback dress sandals which I can wear with dressy jeans and business pants- appropriate? Thirdly, even though it is warmer in New Orleans, it is still fall and I was planning on using chocolate browns and oranges to spice up my mostly black and ivory wardrobe, is this a good idea? I don't' want to look like I'm dressing for summer but want to be weather appropriate. Finally, I was thinking for semi formal awards dinner a little black dress I've worn to an evening wedding before with a wrap and heels. Please give me your opinions! Thanks.