Give free $10 Restaurant.com certificates

Right now, you can send free Restaurant.com certificates to everyone on your Christmas list. You can send up to 40 free certificates every day until December 31.

Keep in mind, Restaurant.com certificates usually require a minimum purchase (probably $15-$20 for a $10 certificate), so you can't score a completely free meal with them, but if you eat out anyway, it's a great way to save money.