Walgreens is offering more than $10 million worth of FREE flu shot vouchers to people who do not have health insurance coverage and are unable to afford a flu shot on their own. Each voucher is good for one free flu shot at any Walgreens pharmacy, subject to the terms and conditions on the voucher. To find out if you are eligible and where you can get a free flu shot voucher, call 1-800-925-4733. (Some additional instructions: When you call, push 4 on your phone to be connected to an Operator. He or she will ask for some personal information and then, if you qualify for the free shot, someone will get back to you within 2 business days with instructions on how to get the voucher and which location to use.) The vouchers are being given away on a first-come, first-served basis — while supplies last.