I would guess that 95% of the population use their PCs for about five or so common tasks:
Communication: E-mail, web browsing, etc.
Office Work- spreadsheets, etc.
Audio/Visual- playing music, storing digital camera files, etc.
Does anyone out there use their computer for anything more out of the ordinary? Do you use your computer as an alarm clock, for example? Do you have one of those distributed-task programs as a screen saver? Are you a hardcore techophile who has their microwave and coffemaker networked to their PC?