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.
Recently, the Labor Research and Statistics Office of California's Department of Industrial Relations (DIR) released updated California consumer price index (CPI) information covering all of 2014. The CPI is a measure of inflation experienced by urban consumers (not a cost-of-living index, per se). CPI allows a comparison of what a fixed market basket of goods and services costs compared with what the same basket cost a month or a year or multiple years ago.