Uncertainty is a key source of stress in the used-car shopping process, and smart shoppers take effective steps to avoid it. Recently, we published this story on how to test-drive a new car like a pro ...

According to Uber Newsroom, when requesting a ride, you can be matched with a Waymo ... No tipping or cancellation fees apply and cars can wait up to 7 minutes for customers.

Plus, there's no one driving the car as it pulls up, so it's kind of hard to miss. Once you've been matched with a Waymo and accepted, here are a few things to know about the ride: Riders can ...