Now if you wanted to do some kind of scripting that invloved your wireless card and available access points, write a little GUI helper to manage your wireless card or you just wanted to bind some hotkeys to control your network card, it'd be very easy to do.

If you want to debug some problem with connecting to an access point with your wireless card, you can use the command

iwevent

This command will show the events that happen on your wireless card such as "New Access Point", "Scan Request Complete", "TX Packet Dropped", etc. This could possibly help you figure out things like, "When I'm connected from the gazebo in the back yard, I see a lot of TX Packet Dropped messages scrolling by, so it's no wonder my connection seems to be really slow from there." I've really never used the command in practice before, but it seems like it could be useful in debugging some problems.