Thumb Score: +11 Amazon [amazon.com] has Red Bull Blueberry Blue Edition Energy Drink, 8.4 Fl Oz Cans, 4 Pack for $6.33 - $1.50 when you 'clip' the coupon on product page - 5% when you check out via Subscribe & Save = $4.51. Shipping is free with Prime or on $35+ orders. Price: $3.31 lower (42% savings) than the list price of $7.82 $1.50 coupon applied at checkout.