There is a $1/1 Starbucks Refreshers coupon available. This one has been around for a bit so I’m not sure if it’s reset if you already printed but you could give it a try.
These are on sale this week at CVS and Target for $1.50 so you pay just 50¢ per can after coupon! Plus at CVS there is a Savingstar rebate for $2 off an $11 Starbucks purchase at CVS and these drinks will count toward your rebate. You may be able to find a great deal at your local grocery store as well.
Thanks Frugal Coupon Living