What are the benefits and drawbacks of relying on bike share programs for flexible commuting, particularly in cities with limited bike infrastructure, and how can riders effectively integrate these programs into their daily commutes to maximize convenience and minimize logistical challenges? Are there any specific strategies or tips for navigating the limitations of bike share programs, such as bike availability, docking stations, and membership requirements, in order to make them a viable option for regular commuting? How do bike share programs compare to owning a personal bike in terms of cost, convenience, and overall commuting experience, and what are the key factors to consider when deciding between these options?