Here is a great article about the lovely mezzo soprano Wallis Giunta in the online version of Dandy Horse Magazine. At one point in the interview she is asked:
What is your best cycling accessory?
My most indispensable bike accessory is my wire basket on my back rack. It hooks on the side of the rack so easily, and has a strong handle, so I can carry it around with me – everywhere.
I also love my YNOT pedal straps, because I can use them with heels just as easily as my Blundstones!