What are the real life examples of Pareto's principle?

List is enormous, however let's see how many of examples I have had on my finger tips.

80% of a company's output is produced by 20% of its workers.

80% of social media shares are by 20% of posts.

80% of software glitches are caused by 20% of bugs.

80% of search visits involve 20% of keywords.

80% of budget overruns are caused by 20% of expenses.

80% of your success comes from 20% of your ideas.

80% of the public uses 20% of their computers' features.

80% of crimes are committed by 20% of criminals.

80% of sales are from 20% of clients.

80% of sales are produce by 20% of a company's products or services.

80% of stresses are caused by 20% of stressors.

80% of rapid promotions are available in 20% of companies.

80% of the wealth is owned by 20% of the population.

80% of negotiation concessions occur in the last 20% of negotiations.

80% of sleep quality occurs in 20% of sleep.

80% of results are caused by 20% of thinking and planning.

80% of family problems are caused by 20% of issues.

80% of retail sales are produced by 20% of a store's brands.

80% of website traffic comes from 20% of content.

80% of opportunity is created by 20% of instigative impulses.

80% of new customers are generated by 20% of new offerings.

80% of muscle gain is built by 20% of the repetitions.

80% of complaints are by 20% of customers.

80% of a town's traffic are on 20% of its roads.

80% of innovation comes from 20% of the population.

80% of a product's costs involve 20% of its parts.

80% of software functionality are caused by 20% of the software developers' efforts.

80% of news coverage is based on 20% of world events.

80% of inventory comes from 20% of suppliers.

80% of your weekly tasks affect 20% of your future.

80% of company's absenteeism is caused by 20% of staff.

80% of investment gains are produced by 20% of investments.

80% of projects get completed in the last 20% of time before a deadline.

The Inverse

20% of your wardrobe is worn 80% of the time.

20% of farmers produce 80% of the world's agriculture.

20% of your phone apps get 80% usage.

20% of foods cause 80% of the weight gain.

20% of your TV channels are watched 80% of the time.

20% of companies, which achieved world-class status, outsource 80% of operations.

20% of words in a language accounts for 80% of usage.

20% of laws are broken 80% of the time.

20% of people in your life consume 80% of your time.

20% of planning causes 80% of a project's success.

20% of workers initiate focus on issues that require 80% attention.

20% of your time leads to 80% of your happiness.

20% of work occupations cause 80% of workplace injuries.

20% of cities have 80% of the populations.

20% of a company's inventory consume 80% of the space.

20% of your habits create 80% of your productivity.

20% of the population produce 80% of innovation.

20% of the foods you eat produce 80% of your energy.

20% of professional athletes cause 80% of ticket sales.

20% of your friends produce 80% of inspiration.

20% of the population cause 80% of car crashes.

20% of doctors, lawyers, and engineers commit 80% of malpractice.

20% of your experiences produce 80% of your happiness.

20% of the hours in a workday yield 80% of the productivity.

20% of companies cause 80% of the pollution.

20% of work hazards produce 80% of injuries.

20% of patients use 80% of health care resources.

20% of your knowledge is used 80% of the time.

20% of infected humans transmit 80% of the diseases.

20% of clothes packed in a suitcase are worn 80% of the time.

20% of newspapers are viewed 80% of the time.

20% of beer drinkers consume 80% of beer drunk.

20% of investment portfolios produce 80% of the gain.

20% of children will obtain 80% of educational qualifications available.

I'll elaborate each of this if you have any doubts, ask me.