What to wear on one's shoulders to interviews? (bags, backpacks, etc.) There has been quite a few questions about how to dress to an academic interview. However, no answer to these questions addresses what one should use to carry their things in. For example, is it acceptable to carry your things in a backpack, cheap shoulder/messenger bag made of synthetic materials, briefcase, expensive leather bag, purse etc? A backpack with a suit would look awfully strange. Maybe a cheap messenger bag would still look OK. Links to photos of acceptable/preferred bags would be nice. Is the etiquette different for post-docs vs. faculty positions?
I have seen them in all in faculty job talks in our department for the last few years. I have seen messenger bags, backpacks and briefcases; some of them have been made of expensive leather and looked really classy/professional and I have even seen them made of cheap, fraying materials.

Either way, it does not matter - except maybe in incredibly conservative departments. We hired one of the folks who had a pretty cheap looking backpack. The fact that he/she had multiple publications in the top journals and conferences in their area probably mattered more. They were all wearing suits though.