Many people love free stuff. It can prove to be an expensive way to promote your site if whatever you give away "gratis" has to be purchased.
While yes, one does have the option of creating a digital product which their site visitors can download free, what if you want more things to give away? Like say, something new every day? That would most certainly get you tons of traffic in the long term.
If you have tried something like this before, where do you get the free digital products which you can offer for free download on your website?