Walgreens has Colgate Toothpastes on sale for $2.99 each. Buy 2 and use the $4.00/2 Colgate Anticavity 6oz 2pk, Colgate Max Fresh 6oz or Total 2in1 4.6oz Toothpastes or Colgate 360 or 360 Advanced Toothbrushes or Colgate Total 500ml or Optic White 16oz Mouthwashes Digital coupon.
You get $2 in Walgreens cash when you buy 2, to make it free.

Walgreens has Crest or Oral-B Products on sale for $3 each
Buy 2 and use the $3/2 Oral Care Select Varieties digital coupon.
You get  $4 Walgreens Cash when you buy 2 to make them free.

Purchase Oral-B Satin Flosses for $3.99 each. Use the $7/3 Oral Care Select Varieties digital coupon, and get $5 in Walgreens cash when you buy 3 to make it free.

Buy 2 Colgate Optic White Stain Fighter Toothpaste, 3.3 oz for $3.99 each and use the $3.00/2 Colgate digital coupon. You get $5 Walgreens Cash when you buy 2 to make it free.