Someone once gave me a bumper sticker that read "Meandering to the beat of a different drummer." That pretty much hits the nail on the head.
I am more prone to staying in than going out, but I do make a point of getting out of the house now and again. I've nothing against a pint or three with friends, but I'm just not really into the so-called bar scene for its own sake.
I'm a confirmed smartass; it's hardwired. Mostly I do a pretty good job of keeping it restrained to the appropriate times and places.
I'm constantly maintaining or upgrading my house and avoiding anything that resembles yard work. Paradoxically, I have found that container gardening is fun, and rewarding. I like having fresh herbs only steps from the kitchen. I also like to grow chiles...I've had as many as six different varieties growing at one time.
Music has been, and will always be, a major force in my life. I played trumpet in a local swing band for five years. I used to be a Redcoat, long ago. After college I taught myself to play guitar and have been playing ever since, mainly for my own amusement. Currently, I'm working with a friend on a Celtic music project.
This also applies to movies/TV and music. To quote Peter Schickele quoting Duke Ellington -- "If it sounds good, it is good." I can find something to appreciate in just about any genre.
Food-wise, I find eating to be a bit more of a challenge since going low-carb. I'll try just about anything once, and I particularly love Thai cuisine. I'm totally down with the spicy.
Something to tinker with -- computer, gadget, tools, appliances, can be just about anything as long as it interests or challenges me.
An escape hatch from reality - that can be a game, a book, a movie or play, just anything that tunes out the outside world for a while.
Coffee -- just trust me on this one. I don't live at Starbucks or anything but I gotta have my morning java.
Solitude -- I'm a confirmed introvert and wannabe-hermit.
Music -- can't drive without some tunes, can't live long without something to make music on/with.
What golf would be like if it were a full-contact sport.