On our way to someplace else shopping, we stopped at a Dollar Tree and found this end cap filled with large (4+ oz) tubes of Colgate toothpaste varieties.  There are a few coupons in 7/18 SmartSource (exp 7/31; limit 2 identical coupons) for 50¢ and $1/2.  Not as cheap as free at Walgreens, but if you’re not a Wags fan and/or want more, give DT a shot and let us know about any scanning issues.