While most of the locations on this itinerary are within walking distance of each other, you may want to consider renting a bike or using rideshare services to save time and energy. Expect to spend around $20 on transportation for the day.
If you have more time, consider adding a visit to the Columbus Museum of Art or the Center of Science and Industry (COSI). If you have less time, skip German Village and The Thurman Cafe, and enjoy an early dinner at North Market before catching a show at the Palace Theatre.