Welcome to LQ, Geeky_Kid.
I use Linux in my dorm room to write code in and also for anything else I need my computer for besides Windows-only games.
So lets see... I use Linux for...
-Writing code
-surfing the web
-IM
-email
-hosting HalfLife/Counterstrike/Specialists servers
-File sharing
-Remote access via VNC
-Samba network filesharing
-Writing documents
-Spreadsheet
-Probably more that I am forgetting
So, I use Linux for nearly everything.