Yes, I have a problem saying no. So far, this hasn't gotten me in over my head.
I take on all projects that my manager asks me to work on. Most recently he asked me to write up some orders. This is usually the engineer's job, but we are short-handed lately, so he asked me to step in. I actually was glad to do this, and think I would make an excellent account administrator. I'm hoping he sees the value of my detail-oriented mind in preparing these orders, and notices the customer support experience I bring to the table. This may help me to move up in my department. But even if he doesn't create a new spot for me, he's got to recognize the "value added" he gets from this sales coordinator. (I'll be sure to add this to my annual review summary page.)
Movinonup 