Staples offers the TRENDnet 802.11n Wireless Easy-N Range Extender, model no. TEW-736RE, for $19.99 with free shipping. That's $5 under our mention from June and the lowest total price we've seen. (It's a current price low by $13.) It features two 2dBi detachable antennas and extends your wireless network up to 328-feet indoors and 984-feet outdoors.