I've gotten some great free samples in the mail lately. I'll list them here and include links for the ones that are still available.
Nature Made vitamins 14-day supply
Kotex sample pack
Oatmeal Crisp cereal
And today's prize ... a full roll of Scott toilet paper! Unfortunately this one is not available any more.
All of these came in about two weeks or so after my request. I have a bunch more I'm waiting on so I hope they come soon!