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.
What it means: Published by the Bureau of Labor Statistics, the Consumer Price Index measures the change in prices paid by consumers for a representative group of products and services. How it's used: The Consumer Price Index (CPI) measures inflation at the consumer level. The CPI is used as an economy-wide measure of inflation and is used to determine annual cost of living adjustments to Social Security payments and employee paychecks. Back to key economic statistics page.