I've seen a couple of these discount card sites. Some offer bigger discounts than others, but every few bucks you save can be spent somewhere else. I just wasn't sure how reliable these might be. So, what's your experience? Have you used any of these sites and are they legit? If you have, which sites, and have you tried using the gift cards yet to make sure they actually work? I tend to be a bit cautious of stuff like this, but legit sites could be useful.