We're moving, and when you move with Muggles you can't use any magic at all! This makes it really, really hard to move - you can't even find where everything is unless you actually go and look.
For example, I think I've packed all my yarn. But I can't be sure, because a simple "Accio Yarn" would violate the International Statutes on Magical Secrecy, and then I'd have a lot more to worry about than just some misplaced yarn.
So I propose a contest. Guess how many balls of yarn I'll find before I'm done packing. Post your answer as a comment, and once I'm settled in I'll send off an owl with a small goodie to the person who's right.