Make space

If you have noticed that your hard drive spce is shrinking and you are not sure what is hogging all the megabytes,you can get a quick,colourful look at the big picture - without wading through folders or fidding with the system utilities.
Just download a tree-map program like WinDirStat for Windows http://windirstat.info/ or Disk Inventory X for the Mac www.derlien.com.
Once you open and run the program, you will get a tree map,or screen full of coloured boxes that deplict what files(and types of files)are filling up your hard drive.
Once you know what is taking up all the room,you can take appropiate cleanup measures.