This paper investigates commuter transportation choices in Linköping, Sweden, to inform the design of sustainable and user-friendly solutions. The study uses interviews, observations, and travel diaries to understand factors influencing mode selection, revealing a prevalence of car usage and significant challenges with public transport. Based on this analysis, three commuter personas were developed. Student groups then used these personas to generate design solutions aimed at lowering barriers to public transport adoption and incentivizing its use.