Keeping It Conversational

In writing commercials for any company will be tough!  Especially, when you get a commercial where you can't really make it appealing to a baby.  There are so many challenges in writing, but I think the biggest challenge for me, so far, is trying to appeal to multiple audiences.  Even using little things like contractions.  I have been taught all of my life to never use them in writing and now that I have to use them quite frequently, it's messing me up a little.  Contraction is almost a connotative word to me just because my English teacher hated them that much!  I know that I'll get the hang of it sometime, but It's going to be hard!