No signal in the storeroom? Keep your inventory up to date offline

The storeroom is in the basement, and your phone has no signal down there. You're sorting the boxes anyway.

1. 1

   Keep working without signal

   Move a box, add a thing, fix a name: each change is saved on the phone at once. A line at the top of Places says you're offline and that 1 change is waiting to sync.

   
2. 2

   Back upstairs, it syncs

   When the phone is online again, the change goes out on its own and the line disappears. Everyone else in your household sees the box in its new place.