Would I be remiss to wear anything other than heels?
I would wear heels unless you find flats that are so fabulous they'll stand out (or compromise and go with a kitten heel or wedge...both more comfortable than pumps or stilettos). But if you do and are worried about walking to parties grab some flip flops for in between and a bag to keep them in. Your Recruitment Counselor should hold them between parties.
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Groucho Marx