I found the $5 off $15 coupons on some Dare products in a food store today. They are good until Nov 22nd.
Since they apply to sale prices, their best usage would be on any sale item that is just over $15. Or a $23.97 Deluxe class whenever the next sale kicks-in.
You can redeem only 1 per transaction and the clerk didn't need the second half of the coupon with the online contest code, so you can keep that. Since every coupon has a unique online code, you can save those (by taking a pic or writing it down) to use online if you use a coupon in-store.