Most folk, when they have some free time, watch tv or read a book.
Me, I put some music on, fire up the PC plug in a 8gb stick I keep for just these times and run Universal-USB-Installer and pick a Distro I haven't tried yet. They have quite a selection available from the dropdown box.
I keep Linux Mint on a larger drive for everyday use. Its every bit as good as Win 7, better if you take in to account the free software thats available.