We’re Cottage Creators. We run The Water’s Edge, The Nest and the Muskoka Cabana in Muskoka, Ontario, and we share what we learn with about fifty thousand people who follow along.

The thing that nagged us: the families who come back every August book through Airbnb every August, and Airbnb keeps the fee — and their email. The tools that fix this quote you on a call and ship you a router. We wanted something you could try for free on the router you already have.

So we replaced the laminated WiFi card with a QR code. Guests scan it, type their name and email, and get the password. That page now knows which stay each person belonged to, whether they said yes to hearing from us, and it never charges more because the list grew.

It ran on our Bell router before it ran anywhere else. Now it runs on yours.

— Shari