Picture yourself walking through the whitewashed streets of the Cyclades with the warm September sun on your face. That is the sweet spot for Greece because the summer crowds have cleared out, the sea is still warm enough for swimming, and you can actually hear yourself think at the historical sites.
We know a trip like this takes some saving, especially when you are looking at flights, ferries, and hotels. If you want to spread out the cost of your $4200 budget without paying extra to a bank, you just need a clear timeline and a solid plan.
Just remember that the intro window is a firm deadline, not free money. If you still carry a balance when those 15 months run out, interest will kick in on what is left.