Late spring is the sweet spot for Scotland. You get longer daylight, blooming heather, and thin crowds at places like Edinburgh Castle and the Isle of Skye before the heavy summer rush hits. The weather can still be brisk, but you actually get to breathe at the major sites instead of shuffling in a line.
A typical trip runs about $3000 once you factor in flights, lodging, and getting around. Paying that all at once hurts, so we need a plan to spread it out over time without letting interest add to the tab.
The 0% intro APR is a deadline, not free money. If you still have a balance left when those 15 months are up, interest kicks in on the remaining amount.