Walmart is a great place to get free samples.  They never need a credit card and ask just enough questions.  Often the samples come with a coupon to add to the savings.  I have found a few products I love just by trying them for free the first time. 

We also take the samples with us on trips.  Why buy travel sized when you gan get them for free?

Walmart sample link for Crest

If you try to get this and samples are out please let us know so we can adjust post.