Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
I started out looking for a handy disk partitioning tool to repair a colleague's ailing computer. I ended up finding a toolbox full of very handy repair and system maintenance apps. As a bonus, I got all of this packed into a nifty specialized Linux distro called "PartedMagic" that boots into RAM from a CD or USB drive.
PartedMagic is compact and lightweight. Having a live distribution built around GParted is a failsafe way to use Linux to manage your computer's hard disk. Normally, any OS will partition the hard drive as part of the installation process. But most OSes give you little or no control over the disk partitioning options and lack much of a useful interface. Even the great variety of Linux distros can leave users guessing about what size and other options to select when making new volumes on a hard drive.
PartedMagic is as close to worry-free partitioning as I have found.