Walmart offers the Netgear RangeMax 802.11n Wireless Router, model no. WNR1000, for $21.99. Choose in-store pickup to dodge the $4.97 shipping fee. (Amazon charges the same price with free shipping via Prime.) Outside of the mentions below, that's the lowest total price we could find by $8, although we saw it for $2 less last winter. This router features four LAN ports and WPA2-PSK/WPA-PSK and WEP encryption.

A close price: Next Warehouse charges $22.95 with free shipping, while Newegg charges $21.99 plus 99 cents for shipping.