When you have to get an important message to one of your residents, you could look up their cell phone number, text them, post on their Facebook page or leave a message on their voicemail. Then, because you are a conscientious person, you might spend your evening worrying about whether they received it or not. Before you know it, you'll be trying to reach them again, just to confirm . . . and so the cycle goes, often for days.

Or you could spend about 20 seconds scrawling the info on this Important Information Door Hanger. You'll know with a single glance whether it's been picked up. Either way, your job is done!