For most people, Easter weekend means an extra-long weekend filled with family activities. As an expat in South Africa, I will probably spend Easter weekend on my new hobby: hiking. Two weeks ago, my CEO (Jan Willem) invited me to walk the Perdekop trail in Mont Rochelle Nature Reserve in Franschhoek. It was an amazing hike with extraordinary views. That morning, I realised that hiking consists of several phases which are similar to a typical spare parts optimisation journey. Let me explain the metaphor.