Hosting thirty relatives sounds great until you realize you will spend the entire reunion stuck behind a hot grill. A catered taco bar takes care of the cooking, keeps everyone fed on their own schedule, and typically costs around $600 for a solid spread.
The secret is managing your lead time. You want to book the caterer about four weeks out to lock in the date, while minor details like paper plates and final headcounts can wait until the last week.
Keep in mind that a 0% intro APR is not free money; it is simply a grace period. Pay the $40.00 every single month on schedule, because any balance remaining after the 15 months are up will face regular interest rates right away.