Moving Motivators: The Tool I Never Leave Behind

This is my monthly appreciation post about the Moving Motivators card deck from Management 3.0. So yeah it's one tool amongst many others, but the variety of usages makes it one of my fave ones at the moment.

One of the 3 tools that never leave my backpack, to be ready to trigger an impromptu energizer or check-in (yeah, those Agile people, right) at any moment.

Any other tool that should never leave my backpack?