Graduation season hits fast, and good photographers book up months in advance. If you want photos on campus with the best light, you need to lock in your date at least two months before you walk across the stage.
A solid portrait session usually costs about $350. You can pay that all at once, or give yourself breathing room by splitting it into smaller monthly payments before the big day arrives.
Remember that a 0% interest window is a deadline, not free money. If you still have a balance on the card after the 18 months wrap up, standard interest kicks in on whatever is left.