Sara Foster Joined Kate Hudson For Back-to-School Shopping!

Sara and Erin Foster strike a pose on the set of a RetailMeNot video shoot on Thursday (August 25) in Los Angeles.

While on set, the Barely Famous sisters chatted about using the app to get the best deals on back-to-school necessities and even did some shopping for Sara‘s five-year-old daughter Valentina!

PHOTOS: Check out the latest pics of Sara Foster

The day before, Sara and Valentina were joined by their good friend Kate Hudson and her children as they picked up some items for the upcoming school year.

The Foster sisters later gushed about loving a good deal and we can’t help but agree!