what have you tried to this point and what have you encountered?
There are a lot of things that reguard scripting, and just as many things that can cause problems, but what I would deem a positive point in scripting might be seen as a negative point to you and others.
I think you have asked too broad of a question without any context. Care to expand on what it is you are actually looking for (and who is the audience of the answer? - meaning class assignment, potential employer you are interviewing with, client you are creating a presentation for)