I'm a big fan of working at offsite locations--meaning my local Wi-Fi-equipped coffee shop. In fact, I'll often spend the afternoon hunkered down at Panera Bread, iced tea in one hand and a French Toast bagel in the other. (It's bad form to set up shop without buying something.)
Wi-Fi - News, Features, and Slideshows
Hair-pullingly bad experiences with wireless networking have led me to formulate Snyder's First Law of Home Networking: No matter who sells you the router, you'll have at least one excruciating session with tech support before you have an Internet connection.
Network problems are the thorniest to resolve. They've been known to reduce my vocabulary to curses so strong they'd embarrass Quentin Tarantino.
<a href="http://www.pcworld.com/tags/Google+Latitude.html">Google Latitude</a> is a useful--if slightly <a href="http://www.pcworld.com/businesscenter/article/158985/privacy_lobby_slams_google_latitude.html">creepy</a>--way to track your location on a mobile phone or GPS laptop. But you can get roughly the same sense of fleeting privacy on any old Wi-Fi PC; Google Latitude automatically pegged me within about 100 feet of my ground-floor office on GPS-free laptop.