Guest checkouts serve as a vital tool in e-commerce by reducing cart abandonment rates, which often occur when customers are required to create accounts. While offering a streamlined guest checkout experience can lead to faster transactions and increased conversions, it also presents challenges like repeat form filling and tracking difficulties. Businesses can optimize guest checkouts through strategies such as minimizing required form fields, utilizing browser autofill, and supporting various payment providers like PayPal and Apple Pay. Additionally, device intelligence tools like Fingerprint can recognize returning visitors, allowing for prefilled forms and reduced security checks, thus decreasing friction for trusted customers. By implementing these strategies, companies can not only improve the guest checkout experience but also encourage guest shoppers to create accounts post-purchase, enhancing customer retention and engagement.