When you want lots of people to contribute in a fair way.

Everyone in a session draws up ideas in a common format, so it's easier to understand and compare them.

1. During an ideation session, make sure everyone completes the following steps for each of their ideas.
2. Start by drawing a "T" on a sheet of A4 paper, or whatever you have to hand.
3. Write a short description of the idea to the right of the vertical and beneath the horizontal line of the "T".
4. Draw a picture to the left of the vertical.
5. Give it a snappy title above the horizontal of the "T".
6. Stick all ideas up on the wall or in a shared virtual space and get the group to dot vote (emoji work well for this on virtual whiteboards).