RBOPY (red, blue, orange, purple and yellow) are considered to be 'safe' colors to use next to each other when placed in that order. I have calculated the RGB values of all theses 'safe' colors. The concertina book can be used as a handy manual, or the removable cover can be taken off and it can be used as a poster in the office.
A concept for a CSR campaign for BP - Text on the forecourt floor points to a tyre and asks 'How much air is this one missing?' When the customer pays for their petrol the cashier hands them a bag of air, along with a receipt, that highlights how much you increase you fuel costs by having low tyre pressures. A line on the forecourt floor then leads you to their free air pump.