What bills can I pay with bitcoin?

I'm curious, as a user of bitcoin, I'm wondering what kind of bills I can pay with this cryptocurrency. Are there any specific merchants or service providers that accept Bitcoin as a form of payment? Are there any limitations to using bitcoin for bill payments, such as transaction fees or processing times? Additionally, how do I ensure that my payment is secure and that the recipient receives the full amount intended? It would be great if you could provide some examples of bills that can be paid with bitcoin and any tips for using it for this purpose.