Dear annoying neighbor across the hall,
Yes, we work from home. Yes, we have a toddler who takes two naps per day (when the gods are kind). Yes, we're happy to receive signature-required packages from FedEx for you when you're out. But, seriously, you can't see the handwritten Post-it note on our door that reads: "Please knock, baby is sleeping. Thank you!"?
Maybe a more formal declaration in the form of this "Quiet Please Sleeping Baby" Enamel Sign ($15) is required to get your attention. We'll be hanging it over the doorbell during naptimes from now on, and if you wake up the toddler again, you'll face The Wrath Of Mom - considerably worse than the wrath of Khan.