Dog days Tails will be wagging for this freebie. Every Tuesday through Aug. 29, Einstein Bros. Bagels is treating canine family members to a free doggie bagel with any purchase. The pet-friendly bagels are fully baked treats made with wheat flour, carob chips, canola oil, eggs and vanilla. (Even though they’re safe for humans, they’re probably a bit too crunchy.) To get your paws on the offer, access the weekly coupon at www.einsteinbros.com/dogseatfree, which you can print or show on a mobile device.