For industrial workplace safety customers only, 3M offers its 3M H-700 or H-800 Series Hard Hat for free when you fill out this short survey. That's a savings of at least $13 and tied with our May mention as the best freebie deal we've seen from 3M. These hard hats feature a Uvicator Sensor that changes color as the hard hat is exposed to UV light to let you know when it needs to be replaced.

Note: No personal (i.e. Hotmail, Yahoo!, etc.) email addresses will be accepted. Expect this item to take four to six weeks to ship.