You can't actually multitask, you're more susceptible to ads when you're sad, and other surprising facts.
When choosing one product over another, the design of the packaging probably influences your decision far more than you realize. Effective packaging design
A portfolio book I made a while back, when people still made portfolios. Each "page" was a window envelope that could display a project, and hold more elements of that project. The book is completely handmade, mostly with found materials.
Universal wrapping paper
A look at the book Graphic Design Thinking: Beyond Brainstorming containing thirty tools and techniques including brand matrix, action verbs and rhetorical figures.