Where ever I can find clothes that fit! lol I am having a hard time with this -- since I'm a grad student and will be graduating soon, I want to get away from that college student look and adopt a more professional look. However, I have such a small frame that normally the only clothes I can find that fit are in the Junior's section! (And considering that I look a lot younger than I really am, I don't want my future coworkers thinking I'm just the intern!) Plus we have a very small mall in my town, so not a lot of options...
I love the Limited and Express since their clothes are both professional and fitted (they don't look baggy on me like a lot of clothes from department store Misses' sections), but I can only afford their sale prices.
I also tend to have fairly good luck at JC Penny's (Junior's dept -- sometimes they have some nice work/dressy clothes that can also work for a 20-something!).