Walgreens currently has a sale going on where, when combined with some free printable coupons, you can get two free packs of Trident gum between now and the end of the month! First, there's a free Trident Layers Gum coupon on HIF's SS page for $1/2. Then, you also get $1 Register Reward when you buy two packs. So you pay $1 out of pocket today, but that $1 RR can be used on anything during your next visit, thus making the gum in effect free! Make sure you stick around for the $1 RR to print out though – I almost walked out of the store this afternoon without grabbing it.