Anyone who's been shopping in the United States knows that the price on an item isn't always the total amount you have to pay. Most states have their own sales tax, which can vary from state to state, ...

Does this sound familiar? You need to make a major purchase, so you research products, decide on the best one, and wait for the best price. You go to buy it, and the final price is more than you ...

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...