Getting free tracfone minutes is almost as easy as getting free ringtones.
You can get free Tracfone minutes, like the ringers, by receiving a promotion in your mail or through a text message from tracfone. If you haven't added money to your tracphone in a couple months, your probably going to receive something in the mail offering you some free minutes when you add more minutes...
Another easy way to get free minutes for your tracfone is to keep an eye out at retailers like Wal-mart or best buy. I have seen on numerous occasions that Best Buy will have "buy one, get one half off" promotions on tracfone cards. The cards come in 60, 120, 250, and 400 unit blocks, but in my experience the only ones offered at half price are the 60 unit and 120 unit cards.
You can also try some of the codes listed below, but I have not had a chance to check these codes yet, so the promotional codes and coupons listed may or may not work still. If you use one of these codes, and it works for you, please post up. Also add a comment if you find one that isn't working so that I can remove it. My friend assures me that some of these codes are still working.
20 free tracfone minutes when you add money to your account using a 100-minute card:
51206, 56024, 52636 or 56084
30 free tracfone minutes when you add money to your account using a 250 unit card:
53105, 51263, 53714 or 51683
50 free tracfone minutes when you add money to your account using a 400 unit card:
57659, 51650, 55335 or 53349
100 free tracfone minutes when you add money to your account using with a 400 unit card, with 1 year extension:
100 bonus free tracfone minutes when you buy a 400 unit, Double Minute card:
Oh, you can also get 100 free minutes by participating in Tracfone's Refer a Friend program. When you refer a friend, you will get the 100 bonus minutes, as long as they enter your phone number when they activate!