If you are looking on Anthropologie online in the sale or clearance section and see an item that is not available in your size or is sold out, call their 1-800 number (800.309.2500). Give the customer service rep the item number, and ask for store numbers of places that have it in stock. Call the stores that have it in stock to order it. You'll also get FREE shipping because you couldn't find it online, plus they will honor the online price.
Sign up for the ANTHRO reward card (no fee) and you'll get a 15% off card during your birthday month