Several probably already know about this, but Sputnik7 offers free streaming anime on demand. Great for educating non-otakus about anime, or just for catching up on shows you might have missed over the years.
A login link is presented on the left menu, but an account is not required for watching the streams. It is mostly for a newsletter and saving your preferences (connection, player, etc.).
-Click watch now for the anime you want
-Select your preferences as normal
-Now click "open in player application" when embedded player loads
-Wait for it to open Real or WMP
-Start streaming
-Close Sputnik7 website in IE, Netscape, etc.
They tend to show more of the old school animes, and often underground titles that never made it popular in the US. That is the whole reason I like the site.
Anyway, make sure to check atleast every few weeks, as the playlist does change. This new collection only features a couple of carryovers from the last playlist.
If you are using WMP, then launch the video in the standalone player like I indicated above. You can then select the view menu, and click full-screen, or just hit alt+enter.