This script contains only the following three lines of code:
It closes all figures, clears the workspace variables, clears all functions from memory, and clears the command window. The intent is to have a very quick method of getting a somewhat clean slate.
It may seem hardly worth writing a script for, and may seem too trivial to upload to FEX, but in the three months since I wrote this script I've thought at least a hundred times, "why didn't I write this earlier?" Hopefully it helps you just the same, or inspires you to write other simple functions that are tailored to your needs.
Note that if you have any functions in your memory, using this command may create headaches as you'll have to reload them.