@JustHereForPikachu asks
my whole collection list lives on one device. Should I keep another copy somewhere?
Jeff answers
I would. Keep a readable backup in a separate secure location and make sure you know how to open it. Include the photos and notes that explain your entries, not just a total. Update it after meaningful changes. A record only helps if you can reach it when the original device isn't available.
— Jeff, infinitepulls.com