Laura - unfortunately scarfs are too hot in our Australian summers (I do love them in other seasons)
Smittie - I love that dress too, and another coral coloured one I have in the same shape. I know you can't see my (strapless) bra in that picture, but I do find that the dress moves around a lot and does show it.
Beth Ann suggested I buy a teen bralette and wear it over my normal bra, which I do sometimes (it is too hot to wear camis) but I don't like the Y shape back they have.
Anyway - on to different styles next summer! (and the 2 sort of tees I bought in November are high necked, so they are alright)