Database of variables


I am wondering if anybody could point me to a trick to be more efficient in my code. Actually, I have to use some numbers in my my script in many places and after a while my code becomes very messy due to wiring. I need something like a database so I can transfer all of my constant values to that database and when I want to recall any one that i like. For an example I wan’t to be able to save fc=30 to a variable and call it whenever I want to do that. I am not fan of hiding wires.