Take a practical Approach and dig in to a new code sample offered by Microsoft every day.
In their own words: Microsoft All-In-One Code Framework offers "Sample of the Day - introduces one amazing code sample every 24 hours that demonstrates the most typical programming scenarios of different Microsoft technologies.
To follow their RSS feed:
http://blogs.msdn.com/b/codefx/rss.aspx?tags=SampleOfTheDayhttp://blogs.msdn.com/b/codefx/rss.aspx?tags=SampleOfTheDay
To follow through their web page:
http://1code.codeplex.com/wikipage?title=SampleOfTheDayhttp://1code.codeplex.com/wikipage?title=SampleOfTheDay
Learn something new everyday or even just validate something you already know :)
Cheers!