Write the next sentence in the following story.

How to tip a cab driver
Listen for the fare.
When the trip is over, the driver will tell you how much you owe. Calculate the tip as a percentage of this fare, or " eyeball " the amount by rounding up to the nearest $5 or $10 bill increment.

+ Most cabs feature a fare ticker which allows you to watch the price of the ride rise as you approach your destination. If you're in a hurry, you can use this to predict, calculate, and prepare your tip before it's time to get out of the cab. + The driver may be willing to itemize the amount you receive with a piece of paper. Ask the cab driver to do something quick to get you a small piece of paper. + It's good to tally the tips regularly, though, so that you're not left with any surprises. Bid for a cab at the end of the trip. + If possible, offer to pay this additional amount or minimum fare in advance to avoid late fees. If you pay early, note whether you want to end the trip at all or how often.. The answer should be
Most cabs feature a fare ticker which allows you to watch the price of the ride rise as you approach your destination. If you're in a hurry, you can use this to predict, calculate, and prepare your tip before it's time to get out of the cab.