I'm going to attempt to do National Novel Writing Month this year... (look up www.nanowrimo.org if you don't know what it is)
I've been plotting and getting my storyline pulled together, and have come to a problem. I combined two stories that have been brewing for a long time, and I realized that now I have these characters that we can't do without...but one of them is essential to everything that happens, but he has nothing he actually does.
So... I'm trying to figure out how to incorporate him better. Maybe give him some essential leading role. Don't know right now.