Could you elaborate on the steps required to successfully link my USD bank account to PayPal? I'm interested in understanding the entire process, from logging into my PayPal account to the final confirmation. Specifically, I'd like to know if there are any specific requirements for the bank account, such as minimum balances or specific types of accounts. Additionally, are there any fees associated with linking a bank account to PayPal? I'd appreciate a step-by-step guide that highlights any potential pitfalls or issues I should be aware of to ensure a smooth and successful process.