I feel like that lately. I have two books I need to plot, and one needs to be written quickly. The other book I could write without an outline by just shoveling more and more trouble in the character's way, but I thought that thinking about the plot first could help.
So I bought this book, Fill-in-the-Blank Plotting - A Guide to Outlining a Novel a while ago. It's short, it talks about the three-act structure (to be honest, I have written something like 13 books that are published or nearly published and never used a three-act structure) and about the hero's journey.
In other words, there really wasn't anything new in this book. But you know what? When I was reading it, it clicked. I started having tons of ideas for the two new books. And the plots, I think, will be better for it.