We traveled from Germany to Denmark and had a funny situation yesterday evening during the campsite check-in. Three people from a time before smartphones had to prove their smartphone skills. There was no staff on-site, and access to the campsite, including booking, was only possible online via a website. As the most tech-savvy of the group, I used my smartphone with GrapheneOS and scanned the QR code to reach the booking site. However, I realized I had no internet connection. So, I used my wife’s smartphone, which had an online connection, and set up a Bluetooth connection. This allowed me to access the website I had scanned with my phone’s QR scanner, despite having no direct mobile internet. I navigated the menu to select the campsite and its options, entering my wife’s phone number to receive an SMS with the access code after payment. For the payment, my father-in-law offered his bank details. During the payment process, he had to use his banking app on his smartphone with internet access to authorize the transaction with a temporary password. In the end, it all worked out: we completed the payment, received the access code via SMS, opened the campsite gate, and enjoyed a great stay at the campsite.