Today only, the Gap is having a 40% off sale in stores!
This is off your entire purchase including sale items. If you have a credit card with them, the discount is 45% off. From what I can see, there is no coupon required to get the discount so if any of you still have Groupons from awhile back- this should be a great deal! (Some stores will allow the Groupon and some will not. I would call in advance and just ask or take your chances of having it refused in store. I have heard this HAS worked for some and HAS NOT for others.)
You can find a Gap store near you here.
Update: My store did allow me to use the Groupon and I got some fantastic deals! Even without the Groupon, I found little jackets for my girls for $6.99 at Baby Gap. Underwear marked down to $2.00 at Gap Body and t-shirts for $4.00 at Gap!