Conjugated polymers are considered by many as leading candidates to produce the next generation of electronics. This belief is based upon several factors: (a) they can be solution-processed using established printing technologies to give flexible, lightweight functional thin films, allowing for low-cost and large-scale production. (b) Several already have desirable properties for practical applications. In the first part of this talk, I will discuss strategies to optimize transistors and show results for well-defined poly(3-alkylthiophene)s and block copolymers of poly(3-hexylthiophene). In the second part of the talk, I will talk about my research here at CWRU on polymer-based photovoltaics.