Your "common" folder is quite substantial.
Your "common" folder is quite substantial.
Alternatively, Steam Library folders can be used. http://steamcommunity.com/id/Dillyplz/
I have 100 gigabytes of content including Skyrim mods, New Vegas, and Metro games. Not all games are installed, but I have a lot of Skyrim and Vegas mods.
I set up my Steam games on various storage devices. I use two SSDs for online play to ensure fast loading, and I install solo games on a mechanical drive.