Japan in the autumn shoulder season is about quiet temple gardens turning red and gold, crisp air, and piping hot bowls of ramen after a long day of walking. Going when the summer crowds thin out makes the whole experience better, but you still need to handle flights, hotels, and train passes.
We know a trip like this usually runs about $3200 for a standard US traveler. Spreading that out over time takes the sting out of booking, which is where payment terms come in handy if you want to keep your monthly cash flow steady.
Just remember that 0% for 18 months on purchases and balance transfers from date of account opening is a deadline, not free money. If you still have a balance left when that window ends, standard interest kicks in on whatever is left over.