The best way to get free minutes with TracFone Wireless is to buy one of the phones that comes with double minutes for life of the phone. This way if you purchase a 200 unit card you will get 400 units automatically. You should also sign up for email alerts and set up a my account on their website. You will recieve text messages with promo codes when you purchase a certain size airtime card. The company also puts out a calendar that has different specials each month and there are always specials for your birthday all the holidays. Just sign up for the my account and will roll in a lot of free units each year.