Here are all of the software/mediums that I use on a frequent basis:
Google Chrome: I use this a lot to get on UT's canvas page and look at homework assignments. As you can see, I'm reading for visual rhetoric.
Notepad: I usually use this to take smaller notes on readings or lectures, just to write basic text.
Virtual DJ: I try to mix audio sometimes and when I do I use Virtual DJ, a mixing software.
Photoshop: Sometimes when I record something on Virtual  DJ I make visuals or cover art to accompany the audio. Photoshop is useful in making this happen, even though I am not too used to it.
Skype: When I have spare time I like to chat online with family and friends. I use Skype because it's free, not really because of a preference.
Microsoft Word: When I'm writing up an essay or working on an assignment I usually do it on Microsoft Word.
iTunes: This is where I listen to a lot, a lot, a lot, of music and also buy tunes sometimes.
I can't really think of any other mediums that I use as frequent as these, but that's probably a good thing because I would probably make my computer crash if I had a bunch of programs to screenshot. Oh, well.