I work pretty hard with long sometimes unusual hours, so when I'm off I make sure to do something with my free time. I don't mind sitting on the couch renting a movie and preparing a nice meal, but I don't like to do it solo.
1) My family
2) My friends
3) My car (makes it easier to travel)
4) My phone (Maps, internet, communication--all at my fingertips. Remember, information is knowledge)
5) A good book
And if you insist on 6) Air conditioning (when I read that the paper clip was voted the best invention of the 20th century, all I could think of was some moron has never spent the summer in South Texas when it's 105 in the shade)