Okay, so this isn't entirely crafty, but I love free samples. It's kind of a small joy of mine.
So I am going to list a couple of freebie/trial samples. These are usually temporary so I can't guarantee how long they will be valid. Some ask for your e-mail address, some don't, just know that sometime, they send e-mail offers.
U by Kotex - http://www.ubykotex.com/samples
Crest Whitestrips - http://instoresnow.walmart.com/enhancedrendercontent_ektid84184.aspx
Burt's Bees Tootphaste - http://www.burtsbees.com/m/root-burt-s-bees-natural-toothpaste-sample-request.html
Emergen-C - http://surveys.emergenc.com/index.php/samsclub-off
Benefiber Orange - http://www.startsampling.com/sm/walmart/captureAddress.iphtml?item=101016&source=&url=http://www.startsampling.com/wmbenefiber1109
True Lemon, Lime or Orange - http://www.truelemon.com/sample.cfm
Pure & Clear facewash - http://www.etelligent.co.uk/etelligent/mp-ViewWebPage.asp?CC=nelsons&FRM=1&page_ID=662
Avery Note Pads - http://averydennison.rsys3.net/servlet/formlink/f?HNLjPQWCB
Dry Erase Paint - Paint that turns any surface into a dry erase board!! http://www.ideapaint.com/home/shop/#sample
Purex 3-in-1 - http://www.trypurex.com/email
A couple of sites that you can sign up for are:
Hope you have fun and enjoy your samples.