Time killers? Internet searching for topics I get interested in and/or things I'm curious about. I have a love/hate relationship with technology.
I love not having to write checks for bills, and being able to read product reviews before purchasing. All kinds of stuff, but at the same time I hate getting myself sucked into the "black box" vacuum.
Thinking of all the things I could be doing with that time. Such as being with and/or around people, hitting a golf club, strumming my guitar...etc.
I used to play video games like TFC and Half Life, and Splinter Cell. That's been several years ago, and enjoyed it but just kind of stopped.
Sometimes I'll turn off my internet connection at home for a period of months, to find other things to do with that time. Right now I have to have one due to being in an oncall situation at work.
But for right now, enjoying reading post by other ISTP and thinking darn it feels good not to feel so different from many people.