Most of us like to write down some notes to remind us of something we need to do. If you walk around the workspace of almost any agile team, you are likely to see countless colorful sticky notes on walls and windows everywhere. But why? Sticky notes are one of the most powerful and versatile tools for collaboration one can ever use. The seemingly simple pieces of paper are a powerful tool to get the whole team to participate and rapidly share their knowledge and perspectives while collaborating towards a shared goal.