Check out http://www.phillyexpocenter.com/ to learn about upcoming warehouse sales in the area.
I cannot attend the Boden Warehouse Sale on October 13, 2012, but the last time I attended, I got these dresses for $30 or $35 per dress (can't remember, but you get the idea - CHEAP!).
If memory serves me correctly, I bought six dresses that day, one sweater, shirt, and skirt (they were winter items, so they won't make an appearance for awhile). I still have not worn all the dresses, so lesson learned for me - don't go crazy at the Boden Sale - you may not wear everything that you buy.
However, these two dresses were worth way more than what I spent because I get a lot of compliments when I wear them. I plan on wearing the pink to court under a navy jacket!
On November 30, the Lilly Pulitzer sale starts!!! I haven't been to this twice yearly sale for over a year, so I am definitely making plans to attend. The last time I attended, I bought some dresses, sweaters, and t-shirts. Lilly t-shirts are my favorite (although the $10 Tommy Hilfiger recently offered at Costco isn't so bad either!).
Even though these are old, here are some of my old Lilly finds:
T-shirt - $20 (I bought two)