Whether you have an old laptop that doesn't have wireless or just want to turn your 802.11b or 802.11g laptop into one that can do 802.11n, read on,
The TP-Link Wireless N Nano USB Adapter (TL-WN725N) is super tiny (only 0.73" x 0.59" x 0.28") and won't get in the way when plugged in, in fact most people will just leave it in all the time. Some cool features are software WPS support, soft AP function for wireless internet sharing, support for 32 and 64 bit Windows operating systems, and security from WEP to WPA2. Yours for just $12.99 here.