ReDress Vintage is an Esty shop I first ran into under the name Cupcake and Cuddlebunny but as of 2013 they've changed the name. They have not however changed the awesome plus size vintage clothes that they sell :)
In addition to vintage finds she also does alterations, makes a few of her own pieces and sells heaps of accessories as well! Go! Run! Well, not so much run as curl up on your couch with your laptop and check out what they've got in stock!