Wedding Budgets Disappearing Faster Than Desert Rain

So my buddy is deep in wedding planning and just texted me, “Why does it feel like our budget is vanishing faster than a rainstorm in the desert?” I couldn’t help but laugh because I’ve seen this happen before. It seems like every little detail adds up from the flowers to the catering, and suddenly you’re over budget without even realizing it. Has anyone else experienced this? What are the sneaky expenses that tend to catch people off guard, and how do you keep things under control without sacrificing the magic of the day? I’d love to pass along some wisdom to my broke friend!