Numerous blogs host giveaways [it's a promotion tool] and frugal folks could take advantage of them to get free stuff. Of course there's no guarantee that you'll get anything but since it won't cost you a penny there's no reason why you shouldn't at least enter the giveaways. Some sites you should take a look at: Log In Log In And you could use Google to find blogs hosting giveaways too
Some blogs I'm subscribed to hold monthly giveaways. Since they're usually fashion or beauty blogs, the giveaways are clothes or makeup items. Sad to say, I haven't won from them yet, lol. But it's fun though, you get to participate in activities like makeup contests or maybe most fashionable contests. You would need some creativity though because aside from sharing the post, you also need to post something like your most creative makeup or maybe a great fashion find you've gotten. If you get picked, then you win the prize! Some bloggers though just have a randomised way of getting winners. Again, sadly, I haven't won that way. Haha!