It's hardly a coincidence that the word "muse" appears in "museum!" Cervantino Museum aims to inspire and entertain visitors, so consider adding it to your schedule.
You're spoiled for sightseeing choice when visiting El Toboso. Cervantino Museum is a good place to begin here, but there are loads of other interesting sights to appreciate. Las Trinitarias Convent and Museum, Dulcinea del Toboso House Museum, and San Antonio Abad Parish are not far from the museum and will round out your day nicely.