Get 30% off at Old Navy, Gap, and Banana Republic now through Sunday, Nov. 15, as part of a partnership with Donors Choose, a charity that lets you support specific projects requested by classroom teachers.

For every dollar you spend, the retail chain will donate a nickel to Donors Choose. But you must mention you want the store to make a donation at checkout or no donation will be made.

The coupon also works at the Banana Republic Factory Outlet and the Gap Outlet. Print the coupon here. You can use it as many times as you want.

Caveats: Not valid online or over the phone. Cannot be combined with any other coupon. Not valid on gift cards, taxes, Gap RED, Junk Food, Converse, Havaianas, Medela, CharmIt!, Robeez, Stella McCartney for GapKids, Stella McCartney for babyGap, or the following babyGap Home items: strollers, car seats, high chairs and nursery furniture.