There are a lot of 'freebie' sites out there, but this is my favorite. I even signed up for their daily mailing list -- it's a nice feature and they don't appear to sell or share your info, which is good.

If you're looking for free samples, it's worth the minute to sign up for their mailing list. As many sites like this share the same freebies, it's nice to get a daily notification over having to use a search engine all the time.