I found patience and undrstanding worked wonders. Explaining over and boringly over the benefits and feelings of freedom part arousal, by which I mean the senses surrounding nakedness, and part exhilaration of being naked has worked wonders. If being naked turns into the norm in the house and round the garden the day will come when she tries. Probably best with some sunshine! Good luck
Am always nude at home alone. My partner and I both sleep naked and will both happily go about our business upstairs naked but she won't be naked downstairs and this saps a bit if my confidence to be naked around her downstairs??
Barley got my wife into being nude outside our room, in our 1 story house she only gets out nude unless all the blinds and curtains are closed. Even if some windows no body can't see us. Hopefully soon that can change but guess now it's baby steps.