5 Handy Ways to Use QR Code Magnets on Your Fridge
Turn Your Wi-FiPassword into a QR Code
Being asked "What's the Wi-Fi password?" every time guests come over is a quiet source of stress. If you put a QR code magnet for connecting to Wi-Fi on your fridge, a single line, "Scan the one on the fridge," solves it.
A QR code for Wi-Fi is generated in a special format: WIFI:T:WPA;S:NetworkName;P:Password;;. Just by scanning it, the device connects to Wi-Fi automatically without typing in the password by hand. Many free QR code generator sites support this Wi-Fi format.
All you have to do is print the QR code on a magnet sheet and stick it on the fridge. Print on a magnet sheet (A4 size) sold at a 100-yen shop with your home printer, cut it out to the size you like, and it is done. If you add a handwritten "Wi-Fi this way," it is easy to understand even for first-time visitors.
Turn the Garbage Collection Calendar into a QR Code
"What kind of garbage goes out tomorrow?" This question comes up almost every week in Japanese households. Many households put their local government's garbage collection calendar on the fridge, but a paper calendar has to be replaced when the fiscal year changes.
If you make a QR code magnet that links to the garbage collection calendar page on your local government's website, you do not need to replace it every year. The local government updates the website every year, so you can always access the latest information with the same QR code.
Even more convenient is putting up a QR code for the download page of a garbage reminder app ("5374.jp" or a local government's official app). If everyone in the family installs the app, a notification such as "Tomorrow is burnable garbage day" arrives the night before, which helps prevent forgetting to put it out.
Your Family Doctor and Emergency Contacts
The phone number of your family's doctor, the nearest emergency hospital, contacts for night-time clinics, and the information in your medication notebook. Collecting this kind of information needed "when something happens" in a QR code magnet and putting it on the fridge gives you peace of mind.
Especially in households with small children or elderly family members, there may be no time to search frantically for contact details in an emergency. A setup where simply scanning the QR code on the fridge displays a list of the necessary contacts is a simple precaution that protects the family's safety.
The easiest way is to create a contact list in Google Docs and turn its link into a QR code. When the information changes, you only need to update the document, and there is no need to replace the QR code.
A Shared Shopping List
"Can you pick up some milk?" "I already bought it." "What? I just sent you a LINE message." Shopping mix-ups between family members can be solved with a shared shopping list. Scanning the QR code on the fridge opens a shared shopping list that everyone in the family can edit (a shared list in Google Keep or Apple's Reminders).
When you open the fridge and notice "We're out of eggs," scan the QR code on the spot and add it to the list. When you arrive at the supermarket, scan the same QR code and check the list. Once you have bought something, check it off. Everyone in the family sees the same list in real time, so duplicate purchases and forgotten items disappear.
Tips for Making It Usable for the Whole Family
A QR code on the fridge is useful only when anyone in the family can use it. It is important to put it at a height that is easy for everyone, from small children to older family members, to see. Next to the code, add a short note on what you can see when you scan it. Just a word such as "for Wi-Fi" or "for garbage" lets people use it without hesitation. Also, for family members who do not have a smartphone, putting up the same content on paper as well gives peace of mind. By shaping these convenient setups into a form that the whole family can use naturally, the fridge becomes a small information desk for daily life.
A Family Schedule and Message Board
The fridge has long been used as the family's "information bulletin board." School handouts, schedules for after-school lessons, and notes to the family. You can upgrade this traditional use to digital with QR codes.
If you put up a QR code for a family-shared calendar in Google Calendar, you can quickly check "this week's schedule" in front of the fridge. Unlike a paper calendar, the advantage is that you can check the same schedule on your smartphone even when you are out.
It can also be used as a message board for the family. If scanning the QR code opens a family-only chat group or shared notes, the "note on the fridge" becomes digital. "I'll be home late today. Dinner is in the fridge." You can share messages like this through the QR code on the fridge.