Old Navy typically allows customers to use Super Cash both in-store and online, which provides an opportunity for shoppers to save on their purchases. Super Cash is often issued during specific promotional periods, and it usually has conditions attached, such as a minimum purchase requirement. When using Super Cash online, customers need to enter the code in the designated area at checkout to apply the discount to their order. However, it is essential to check the expiration date and specific terms associated with the Super Cash offer, as these can vary. For the most current and detailed information about using Super Cash online, it is advisable to look directly on the Old Navy website or the specific promotion details for the best guidance.