The most common bills are the $1 (a "buck"), $5, $10, and $20 denominations. There are also $2 bills (seldom encountered), $50 bills, and $100 bills (the last two are usually not welcome as payment for small purchases).
Coins come in seven denominations: 1¢ (1 cent, or a penny); 5¢ (5 cents, or a nickel); 10¢ (10 cents, or a dime); 25¢ (25 cents, or a quarter); 50¢ (50 cents, or a half-dollar); the gold-colored Sacagawea coin, worth $1; and the rare silver dollar.
What Things Cost in San Antonio (in US$)
Taxi from the airport to the city center 30.00
Streetcar ride between any two downtown points 1.10
Local telephone call 0.50
Long-neck beer 4.00
Double at Westin Riverwalk Inn (very expensive) 360.00
Double at Drury Inn & Suites Riverwalk (moderate) 150.00
Double at Best Western Sunset Suites (inexpensive) 135.00
Lunch for one at Rosario's (moderate) 12.00
Lunch for one at Twin Sisters (inexpensive) 7.00
Dinner for one, without wine, at Las Canarias (very expensive) 60.00
Dinner for one, without beer, at La Fonda on Main (moderate) 16.00
Dinner for one, without beer, at Schilo's (inexpensive) 10.00
Adult admission to the Witte Museum 7.00
Ticket to the San Antonio Symphony 20.00-80.00
Ticket to a Spurs game 50.00-100.00
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.