Founded in 1994, Tot Drop is a preschool program with locations in Hercules, Livermore, Benicia, Walnut Creek, Pleasanton and in Lafayette, on Saint Mary's Road. The Lafayette location is the company's first, offering an educational and interactive environment for children ages 1 - 5. Parents are able to design their children's schedules, pay by-the-hour, and are not charged cancellation fees if plans change.