1. Do they match anything in your closet?
If your new kicks wouldn't coordinate with any outfits you already own, chances are, they'll have the tendency to be pushed under the bed more often than pushed onto your feet.
2. Can you walk in them?
If you couldn't, even after extensive "hallway runway" practice, walk more than a few steps in the prospective new shoes without fumbling over your feet, you're probably better off purchasing a more practical pair.
If the answer to either of these questions is not-quite a "yes!", then, as difficult as it may be, I put the shoes back on the rack.
In order to save my tush from being incredibly late, and the other driver's sanity from my slow driving, I was left no other option than to take off my fancy new kicks (or at least the right one). With lots of luck and plenty of prayers, I made it to class on time and in one piece. But I have learned a very important lesson:
When purchasing shoes, it's necessary to ask yourself THREE very important questions.