For its newsletter subscribers only, newegg again offers the ASUS USB 2.0 Bluetooth 2.1+EDR Dongle, model no. USB-BT211, for $0 via the directions below. With $1.99 for shipping, that tied with an expired mention from two days ago and the lowest total price we could find by $14. (It was $2 less a month ago, since expired.) Deal ends March 19. To get this deal:

1. Add the ASUS USB 2.0 Bluetooth 2.1+EDR Dongle to your cart for $12.99
2. apply coupon code "EMCNGJG77" and it drops to $5
3. redeem this $5 mail-in rebate to get it for $0