[IggleSniggle]

I like to use emojis when they allow me to get denser content, especially if it's to be printed to a TTY. As long as there's a key somewhere, reducing var names to a single character allows you to pack in a lot more information, while simultaneously being far more expressive than eg "i", "j", "k". It gives you the benefits of columnar data without requiring scrolling back to see headers or even requiring that the columns be perfectly evenly spaced.