.....you get genuinely excited by the arrival of a part for your vacuum cleaner 
Not even a new vacuum cleaner, but a part for the old one 
Honestly, the post man came to the door and I actually said out loud "oooo, it's here!" and was even slightly nervous just in case it wasn't the little bit of plastic I'd been waiting for! The disappointment would have been all consuming! 
Oh dear. Over to you......