"A job? Me?" The Doctor laughed a little. "I'm rubbish with domestics. No, I haven't gotten a job. Haven't needed to, really. You could say my house came with me." The TARDIS was hardly a house. She was much, much more than that, the only home the Doctor had left and the last of her kind, just as he was the last his. He wasn't certain what he would have done without her. Settled down in a rented place with one or several of his friends, he supposed, rather like he'd had to do with Martha when they'd last been trapped in the 1960s on Earth.
"I suppose most of the people who come here have to find work, though, don't they? That's not a bad thing, not really. Keeps the mind active, hands busy. Might be something to think about."