Money Advice for Traveling the U.S.A.

February 17, 2006 (Press Release) -- If you camp or stay in hostels, catch buses and self-cater, you could feasibly explore the country on around US$50 a day. Staying in motels and eating at modest cafes will mean you'll hit the US$100 mark, and enjoying the convenience of a rental car will push your daily budget up to US$150. If you want to do the US in style, welcome to the world of credit and consumerism.
You'll save yourself hassle and expense if your traveler's checks are in US dollars. Restaurants, hotels and most stores accept US dollar traveler's checks as if they were cash. Major credit cards are widely accepted; you'll find it hard to perform certain transactions (such as renting a car or reserving tickets over the phone) without one. You may also be able to access your bank account using US ATMs.
Tipping is expected in restaurants and better hotels. The going rate in restaurants is 15% or more of the bill; never tip in a fast-food or self service environment. Taxi drivers, bartenders and hairdressers depend on similar-sized gratuities. Sales taxes vary from state to state but are typically 5-8%, though some states have no sales taxes at all. Top-end accommodation also often attracts a bed tax, which can be as high as 15%. It's worth checking whether quoted prices for lodging include all relevant taxes.

Currency
US dollar (USD)

Relative Costs
Meals
• Budget: US$3-5
• Mid-range: US$5-20
• Top-end: US$20 and upward
Lodging
• Budget: US$12-25
• Mid-range: US$25-60
• Top-end: US$60 and upward

Source: http://sg.travel.yahoo.com