Leading an environmentally friendly lifestyle can be so simple. If you’re going to leave a room for more than three minutes in the evening, it pays to turn off the light. Or: regularly checking your tire pressure increases driving safety and saves gas. These are only two of the 40 solutions in the areas of mobility, energy, everyday habits and retail consumption that are easy to put into practice immediately, 40 suggestions that you can playfully explore on a Touch Table. Users can also ascertain their own CO₂ footprint. The original version of this installation is part of an exhibition entitled L’Oracle du Papillon in Fribourg, Switzerland.