 Using a credit card to pay for your rent. At the surface, it sounds like a neat, simple solution maybe, but WTOPC in Crawford tells us there are some things to watch out for if you do. In the internet-minded 21st century, it's become very easy to pay your rent online with a credit card. It's a great way to rack up points and rewards in some cases, but Katherine Hamilton, who writes about this in the Wall Street Journal, says the biggest key is keeping up with the bills in the first place.