Amazon has a Save $5 off the Purchase of 3 Items section. In that section, you’ll find a 6 count of Colgate Extra Clean Full Head Toothbrushes for $4.43. Purchase 3 of them and you’re total will be just $8.29 for all 3 packs after the $5 off discount!
You can also mix and match this item with other items in the Save $5 off the Purchase of 3 Items section. Let me know what deals you are able to put together.