There are two crucial points to come out of the Walgreens Flu Impact Report. First is that Walgreens even has a Flu Impact Report. That's reflective of just how fast retail pharmacy is becoming the place to go for a convenient-and-affordable influenza inoculation. Second is the correlation between flu season and holiday travel that includes Thanksgiving and the December season of gift-giving events. Because it doesn't matter where over the hill toward grandmother's house you go, there will be a Walgreens within 3 miles of where you'll be, so your flu shot is covered.