I just found this website the other night, thanks to Dealseekingmom.com.
Sample Showcase is apparently a great way to sign up for a number of free product samples- all conveniently packed into a box, courtesy of a program by the USPS called StartSampling. I have not received one of these boxes yet and "do not qualify" for the current box offering but I was able to sign up for a number of great product samples online. Just sign up for an account and click on the Samples link at the top of the page. You can then search through the samples available and individually sign up for any & all products you are interested in. Fingers crossed that we'll all qualify for the next Sample Showcase box!
I'll let you know if/when I receive my samples. Good luck & I hope you get to try out some awesome new products soon!