Visible has a helpful feature that allows new customers to sign up using an existing customer’s code and both the new user and the existing customer get a month of service for $5! ($35 discount). Here’s my code: 3FN6VHM to help us both get a big discount.
Also, after you activate your service, you can also join a group, or a party, to get up to $15 discount to $25/month. Here’s the large group (10,000+ members) that I joined to get $25/month: https://visible.com/p/BeeHappy