Simply Right Baby Formula–Free Sample

You can try Simply Right Baby Formula for free thanks to Sam’s Club.  They offer a choice between Complete, Gentle, and Sensitivity varieties.  You’ll need to enter your address so they can send it to you by mail.

This is the Sam’s Club brand that used to be called "Member’s Mark.”  It looks like the name switch happened fairly recently, since the online Sam’s Club store is still selling both types at the moment.