Dollar Shave Club offers the first month of its 2-, 4-, or 6-blade razor subscription for $1 with free shipping, a savings of up to $8. Choose from the Humble Twin 2-blade razor, 4X 4-blade razor, or Executive 6-blade razor. The latter two come with four cartridges while the 2-blade model includes five.

Note: After the 1-month trial you'll be billed for subsequent cartridge shipments starting at $3 per month.