I discovered that the subconscious mind really works, and it changed the way I design presentations. Partly driven by my experience as a strategy consultant at McKinsey where presentations are mostly associated with presenting recommendations at the project deadline, presentation design used to be a focused and exhausting sprint to the finish line. I changed my approach: dropping work on a presentation for a day, doing a few detailed charts, taking a break, sketching high-level stories, sleeping on it, working on the color scheme, working on a different project, finding a great closing image, etc. Maybe you should try it as well.