For new customers, Dollar Shave Club offers a one-month trial membership for free via coupon code "D12S4C12". It includes your choice of one of three razors and a month's supply of blade cartridges. That's a savings of up to $9.

Note that this plan will continue at up to $9 per month after your trial expires; you must cancel it before the trial is over or you'll be billed for a month's membership.