You finally have the keys, the boxes are mostly empty, and a month from now you want friends over for tacos. A casual taco bar for a crowd usually runs around $500. Lead-time is your real lever here so you aren't rushing.
Some things need booking early while others can wait. We want you to enjoy your new place instead of stressing over the credit card bill the next morning.
That 0% intro period is a deadline, not free money. If you still have a balance left when the 15 months are up, standard interest kicks in on what you owe.