While barney
and I were hanging out this weekend, he raised a problem in osx that I
had not really ever noticed.  Because most of the applications I
use are all contained within one window.  Firefox has tabs,
Eclipse has tabs, Mail only has one window.  The problem comes
when you use the keyboard shortcut (cmd+tab) to switch applications,
that is all you get - just applications.  So if you have
Dreamweaver open with a few docs, or multiple browsers, you can not
pick "which" of these windows you actually want.

So being the good friend that I am, I went looking because this
bothered him ( and because I was bored, probably more about me being
bored).  What I found was a recent post over at Eric’s site.  He posted (only 1 day earlier) about a program called "which".  Which is an application switching utility that allows you to switch between actual windows, not just applications.

It appears to be a very useful solution so I wanted to share.  I
remembered finding this today, while reading this post over at Sean’s site
One of the comments was talking about application switching using
spotlight (which I dont get but I will leave it alone :P ).  So if
you ever run into this problem, take a look at Which.