All you have to do is scroll down and pick the right plan for you. They start at just $15/mo and include unlimited talk & text, high speed data and other good stuff.
Need more convincing? Here's a note from your friend:
"Switch to Mint Mobile already and stop spending so much on your wireless plan. Use my referral link to get $15 in renewal credit. Then use the money you save to buy me lunch or something (as a thank you)."