I would like to have on my store, a free downloadable product. I've been reading up on downloads and how they're configured but not too familiar with them in practice. The idea I have is that customers could add this free download to their shopping cart along with their other physical, paid for products. However, I'm not too bothered if they go through checkout with only the free download. I would like the free download to become available after checkout is complete and not before. Is this possible, and how would I go about setting this up? I have thought about simply adding a link on my checkout success page to where the file is located but this wouldn't be all that secure, plus I wouldn't then have the benefit of being able to advertise the download product on the product pages. Just to clarify, I would like the customer to go through checkout with the free download AND their normal product(s). Could this work?