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.
Term CPI Definition: The common abbreviation for the Consumer Price Index, which is an index of prices of goods and services typically purchased by urban consumers. The CPI is compiled and published monthly by the Bureau of Labor Statistics (BLS), using price data obtained from an elaborate survey of 25,000 retail outlets and quantity data generated by the Consumer Expenditures Survey.