Groupon has a great deal right now for old navy. The catch is that it expire at the end of July so its great if you need summer clothes or vacation wear.
Sign up for Groupon using my referral if you are new and I get referral bucks.
If you already have groupon here is the link to the OLD NAVY DEAL.
If you don't see the Old Navy on the main page then look to the right and you should see a list of other deals and OLD NAVY should be listed.