Today I cleaned out my installed programs
This was an interesting exercise, I was surprised at the number of applications that I had on the hard drive that I don't, and have no intention, of using again.
Part of this is down to the "nature of the beast", I have installed items to trial, or to investigate issues for others, the rest are due to changes in workflow.
One example is due to the change to Lightroom 4 late last year, over the years I had developed a workflow based on previous versions and had amassed a collection of programs to perform tasks that were not possible easily in lightroom, Geotagging, camera import, (with renaming), that are now incorporated into the software.
In all I freed up in excess of 11GB of space on my system drive.
maybe it's something we should all think about