In 1999, when my son Tristan was born, I began having trouble with to-do lists. The problem was twofold: on one hand, there were so many things to remember to do, or that I might want to do someday; ...

For quick reminders and can’t-miss memos, sticky notes are effective tools, and I’d argue that the simplicity of the sticky note is its best attribute. But the ease behind propping up sticky notes ...