I mentioned that I set my system font to Braille in a previous post. This tutorial generalizes to any font you can find in a .ttf format!
sudo apt-get unity-tweak-tools sudo apt-get myunity
Extract the .ttf files, click the file you desire and “Install Font.”
Open myunity, go to the font tab, and adjust as you please! An example of this font in action, which will spill across my navigation menus for the sake of resolution: