Is it smart to pay your utility bills with your credit card to earn?
Absolutely. I am paying my cable and cell phone bills with a credit card that is giving me a 5% cashback. I also settle my statements with automatic payments in full. Also when I am coming up on renewal dates for my car and homeowners insurance I keep an eye out for credit card offers with signing bonuses for reasonable spend requirements. And of course the cards are settled in full each month, automatically.