Yes there is life with or without Windows & Mac. It is flexible, fast, fun, and FREE! This fun is with the big family of GNU / Linux free & open source operating systems. Below are the distros (Linux distributions) that I use. Not only are the hundreds of Linux distros, but you also have the choice of desktop environments too. While you only need one Linux distro for all the work and play you do, it is just too much fun using different Linux flavors. It like driving a different sports car everyday.
Ubuntu (Unity desktop)
Linux Mint (Cinnamon desktop)
openSUSU (KDE desktop)
Xubuntu (Xfce desktop)
Puppy Linux (Precise Puppy version)
CrunchBang (Openbox window manager)