Τhe discovery and development of conducting polymers not only endowed Heeger, MacDiarmid and Shirakawa with the Nobel Prize in Chemistry 2000 but, more importantly, marked the emergence of Organic Electronics. Polymers are now incorporated in electronic devices that benefit from their (semi)conducting and/or electroactive functionalities, combined with the advantages brought by their soft nature, i.e. flexibility, ease of processing, lightness, etc. Thanks to these merits polymers are now employed in cutting-edge technologies, in applications related to energy harvesting, sensing and actuation, bioelectronics, lighting and others. In this talk I will highlight the links between polymers processing, resulting nanostructure and final functions. I will focus on two families of polymers which are of great interest for organic electronic devices: a) PEDOT-based (semi)conducting materials and, b) PVDF-based ferro-/piezo-electric polymers.