Coloured paper (and coloured card) makes ideal visual aids - to organise communications, as flyers, invitations, notices or menus, and in card sorting and other workshop contexts.
In communications, you can use coloured paper to differentiate memos from different departments, to prioritise communications, and so on.
Coloured paper can also be used to liven up presentations. You can use different colours to communicate different ideas, themes and moods. Click here for a guide to the psychological effect of colours.