The best advice I've read makes it feel much less like a skill. Do your homework and decide what price you would walk away from. It's easy to raise the price yo

The best advice I've read makes it feel much less like a skill. Do your homework and decide what price you would walk away from. It's easy to raise the price you would walk away from by having multiple offers, and once you've done your homework you can have a normal discussion about their offer. Instead of something equally vague as "I'd like more" you can say exactly why you think you should get more.