The agile tool box!
One of the things I can't over emphasise enough when coaching agile techniques or working with a team is the importance of keeping everything 'real' and 'physical' I'm an enormous fan of the 'Information Radiator' despite being accused numerous times of being a 'bit old school' and once told by a manager that a task board didn't reflect well on an IT department! A task board is a brilliant way of being visible and visibility helps to encourage collaboration and trust. Writing stories on index cards or post-it notes is the start to working collaboratively - you can touch and feel the story... pass it around sequence them on a board as a team and discuss each story - it's something that just doesn't happen when using a computer based system. If I'm being really honest - I secretly wonder if teams who don't use a physical task board are really all that agile or just scrum-buts! That might sound a bit far stret...