Photo prints are on sale for 10 cents each at Target this week, a fairly nice sale.

But why pay anything at all when you can use a coupon and get 40 4x6 prints for free?

Just in time for Black Friday, Walgreens is debuting a mobile coupon program for customers with smart phones.

The pharmacy chain, with more than 7,700 stores across the country, is adding the scannable coupons to its mobile app.