Quite remarkable idea, ready to test this out before buying more storage devices.
How to Store Information in Your Clothes Invisibly, Without Electronics
By University of Washington
A new type of smart fabric developed at the University of Washington could pave the way for jackets that store invisible passcodes and open the door to your apartment or office.
The UW computer scientists have created fabrics and fashion accessories that can store data — from security codes to identification tags — without needing any on-board electronics or sensors.
As described in "Data Storage and Interaction Using Magnetized Fabric," presented at UIST 2017, the ACM Symposium on User Interface Software and Technology, the researchers leveraged previously unexplored magnetic properties of off-the-shelf conductive thread. The data can be read using an instrument embedded in existing smartphones to enable navigation apps.
"This is a completely electronic-free design, which means you can iron the smart fabric or put it in the washer and dryer," says senior author Shyam Gollakota, associate professor in the Paul G. Allen School of Computer Science & Engineering. "You can think of the fabric as a hard disk — you're actually doing this data storage on the clothes you're wearing." ..... "
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