UPDATE--I just bought the toothpaste today and noticed that at the bottom of my receipt (where they post all the information about the current ECB deals you've done) shows that the limit was not reached. That means that I will be able to use that $3.49 ECB they gave me and buy another tube of Crest, and it will print out a different $3.49 ECB. So TWO tubes of free toothpaste (or money making toothpaste if you have coupons).
Please check the bottom of your receipt after buying one to make sure you have not reached your limit prior to buying a second tube!
To make the deal even better I found tearpad coupons that offer a FREE tube of Crest Pro-Health toothpaste when you buy 1. I have 5 available. So, for the first 5 people who leave comments our blog I will mail you this MIR coupon for the free tube of toothpaste!