This is a great freebie and my son loves these little DVDs! Go here to get your free GeoTrax DVD. These DVDs take awhile to come. Like 12 weeks. I usually forget that I ordered it and get a nice surprise.
Swagbucks is totally free! It is a search engine that rewards you for searching! While you search you earn swagbucks that can be traded in for all sorts of things. My favorite is Amazon gift cards! Totally legit! Try it out!