I know it's been said before, but a great fitting bra will do wonders for any woman! Try figleaves.com - they sell sizes that I can't find anywhere else (thank you 34G chest!).
I really like the your infinity dress! I've had the fabric to make one for years now, but have been hesitant to make it out of the fear that I don't have the right body type for it. You have inspired me to give it a go!