Go here to print out $1.50/1 coupons for Colgate toothpaste!
They sell the smallest tube of Colgate Total for $2.63 (I believe). If you have access to the Walgreens December EasySaver Booklet or you can go online here to print them (they come out blurry though and you may have trouble using the Internet coupon in your store) there is a $3/2 coupon on Colgate Total.
If you purchase the 2 tubes at $2.63, use 2 $1.50/1 and the $3/2 coupons you will get them for free! The Walgreens coupon should be adjusted down to $2.26 (most stores won't let you have any overage..but some may!)
To my surprise, CVS is apparently not the only place to get free toothpaste! :)