A request for requests

A very loyal MR reader in New Orleans asks for more space to make requests.  What would you like to read about?

This time I disavow "three times is the charm" as a rule of collective choice.  I do promise, however, that my response to your requests will embody the property of monotonicity, namely that more asks for a topic won’t lower its chance of being covered.  Comments, of course, are open…