This is the home of Think On Your Feet, Inc., inventors and distributors of the Colorado Trial Calculator® and other circular calculators designed with the attorney and paralegal in mind. Our most popular product—the Colorado Trial Calculator®—is also available as PC-compatible software.

John A. Cimino, a trial attorney in Denver, Colorado with more than 20 years experience in all state and federal courts, is the inventor of the Colorado Trial Calculator®. These products are guaranteed to a tolerance of .005 and are made on hard plastic for years of use.

Printed by a company that specializes in the production of aeronautical and navigational instruments, we are proud of the precision afforded by these tools. Should you not be satisfied with our products, we will happily refund your entire purchase price within 30 days of delivery.

Click on the "Order By Mail" link on the left for our mail- order form, or click "Order Online" to place your order now.

And let us know if you have an idea for a circular calculator—we'd love to help bring your idea to market.