I ordered two sizes in lace shift style dress from j crew. The smaller size fits like a glove - but I am very aware of the fact that it is quite fitted when I sit down in it. The next size up has a bit more room - not as fitted around the waist and more room to sit down.
I am inclined to got for the bigger size - because while it's quite a dressy dress, I hope to dress it down and get lots of wear out of it - so comfort may be a consideration.
What do you think?
I always get this with jeans as well...