Welcome to the mystical realm of sizes – where numbers, letters, and measurements collide in a cosmic dance of cosmic proportions (well, maybe not cosmic, but you get the idea)!

First, you'll need to assemble your measuring arsenal – a trusty tape measure (the longer, the better – we're talking measuring tape), a mirror (for those hard-to-reach places), and a sprinkle of patience (trust us, you'll need it).