Rite Aid has released a new flu coupon book for 2011. In some stores, these books are available at the pharmacy counter and in other stores, they reserve them for people getting a flu shot. Rite Aid Flu Coupon Book $2/1 Advil or Advil Congestion Relief Item $2/1 Allegra Allergy Item $2/1 Aspercreme or Capzasin [...]