I didn't have that problem. Are you sure you're checking right spot/chest? I think there was only one chest in the house to begin with, upstairs in the bedroom, right?
The compressed air thing works fine for me, just do it from a few different angels to make sure the dust comes out of a vent.
Marriage, on the other hand, seems like it may have the opposite effect. Have you seen how dusty ladies are these days? And don't even get me started on dudes.
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