Tips. 1  Buffing too much might make your nails weaker so be careful. 2  Apply a new layer of cuticle oil whenever it has been buffed off. 3  Never buff with file (the coarsest side). 4  Nails should stay shiny for approximately 1 to 2 weeks.
DEFINITION of 'Consumer Price Index-CPI'. A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food and medical care. The CPI is calculated by taking price changes for each item in the predetermined basket of goods and averaging them; the goods are weighted according to their importance.
The Consumer Price Index (CPI) is a measure of the average change in price over time in a fixed market basket of goods and services bought by consumers for day-to-day living. The All Items CPI for the U.S. is the broadest, most comprehensive index, and is often quoted as the source for the rate of inflation.