Once were

[Leanne]

Shouts and flashes built my box and I am independent of the floor I once commanded, a transportable label that others know by osmosis rather than effort, as they absorb the quiddity you stapled to the bill.

Not seeing ambiguity of sentence structure there, Mr Tak -- perhaps you've come to expect it I am independent of the floor I once commanded; I am a transportable label that others... etc.

As for quiddity, I really wanted to use haecceity but it didn't fit the bill :p

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PS if I've buggered up the Latin, can you offer correction? It's a long time since I listened to those nuns.