Walgreens Ad Preview Starting Tomorrow, December 17! December 16, 2017 by Tracey Here’s the Walgreens Ad Preview for sales starting tomorrow, December 17! We’ll be doing match-ups soon, so check back later and prepare your shopping trip! Checkout more Walgreens deals HERE! Coupons powered by Coupons.com Thanks iheartwags.com! Facebook Comments Share this:TweetPrint Check Out These Deals!