ATMs

The easiest and best way to get cash away from home is from an ATM (automated teller machine). The Cirrus (tel. 800/424-7787; www.mastercard.com) and PLUS (tel. 800/843-7587; www.visa.com) networks span the globe; look at the back of your bank card to see which network you're on, then call or check online for ATM locations in Chicago (they're all over the city, so you shouldn't have trouble finding one). Be sure you know your personal identification number (PIN) before you leave home and be sure to find out your daily withdrawal limit before you depart. Also keep in mind that many banks impose a fee every time a card is used at a different bank's ATM, and that fee can be higher for international transactions (up to $5 or more) than for domestic ones (where they're rarely more than $1.50). On top of this, the bank from which you withdraw cash may charge its own fee. To compare banks' ATM fees within the U.S., use www.bankrate.com.

You can also get cash advances on your credit card at an ATM. Keep in mind that credit card companies try to protect themselves from theft by limiting the funds someone can withdraw outside their home country, so call your credit card company before you leave home. And keep in mind that you'll pay interest from the moment of your withdrawal, even if you pay your monthly bills on time.

Traveler's Checks

Traveler's checks are something of an anachronism from the days before the ATM made cash accessible at any time. Most downtown restaurants, hotels, and shops in Chicago accept traveler's checks, and banks generally exchange them for cash (for a small fee). When you get away from downtown and the more affluent neighborhoods, however, smaller restaurants and shops may be reluctant to accept traveler's checks.

You can get traveler's checks at almost any bank. American Express offers denominations of $20, $50, $100, $500, and (for cardholders only) $1,000. You'll pay a service charge ranging from 1% to 4%. You can also get American Express traveler's checks over the phone by calling tel. 800/221-7282; Amex gold and platinum cardholders who use this number are exempt from the 1% fee.

Visa offers traveler's checks at Citibank locations nationwide, as well as at several other banks. The service charge ranges between 1.5% and 2%; checks come in denominations of $20, $50, $100, $500, and $1,000. Call tel. 800/732-1322 for information. AAA members can obtain Visa checks without a fee at most AAA offices or by calling tel. 866/339-3378. MasterCard also offers traveler's checks. Call tel. 800/223-9920 for a location near you.

If you choose to carry traveler's checks, be sure to keep a record of their serial numbers separate from your checks in the event that they are stolen or lost. You'll get a refund faster if you know the numbers.

Credit Cards

Credit cards are a safe way to carry money. They also provide a convenient record of all your expenses, and they generally offer relatively good exchange rates. You can also withdraw cash advances from your credit cards at banks or ATMs, provided you know your PIN. If you've forgotten yours, or didn't even know you had one, call the number on the back of your credit card and ask the bank to send it to you. It usually takes 5 to 7 business days, though some banks will provide the number over the phone if you tell them your mother's maiden name or some other personal information.