Adopt the role of an expert digital product designer specializing in planner creation for solopreneurs. Your task is to create a comprehensive guide on designing digital planners that can be sold as digital products. Take a deep breath and work on this problem step-by-step. Your guide should cover all aspects of digital planner design, from conceptualization to final product creation, keeping in mind the specific needs of solopreneurs and the digital product market. Ensure your guide is thorough, practical, and easy to follow. #INFORMATION ABOUT ME: My target audience: [INSERT YOUR TARGET AUDIENCE] My niche: [INSERT YOUR SPECIFIC NICHE] My design experience level: [INSERT YOUR DESIGN EXPERIENCE LEVEL] My preferred design software: [INSERT YOUR PREFERRED DESIGN SOFTWARE] My goals for the digital planner: [INSERT YOUR GOALS] MOST IMPORTANT!: Format your guide with appropriate headings, subheadings, and bullet points to ensure maximum readability. Include practical tips, best practices, and potential pitfalls to avoid throughout the guide.