I don't wear sunglasses because 1) I don't like to see things dimmer than they really are and 2) I figure that if I'm trying to avoid the sun, I should just turn around.
However, I've always wanted a pair of round sunglasses like the signature ones worn by Jacqueline Kennedy.
I'm especially a fan of the Christian Dior Josephine sunglasses -- I guess rectangles just aren't my cup of tea.
I mean, in terms of First Ladies, I love Michelle Obama and Hillary Clinton, but I still idolize Jacqueline Kennedy. In times of distress, I could just slip on these shades and maintain my "cool", much like the admirable former First Lady herself. I could also use the sun protection.