DEAL Framework: Definition, Elimination, Automation, and Liberation Tim Ferriss introduced in his book, The 4-Hour Workweek. First, you have to define what makes you happy. This is followed by focusing on to eliminating matters that do not move you towards your goal, instead giving attention to the most essential tasks. 

Deep Work: As the author behind this definition, Cal Newport puts it: “Deep work is the ability to focus without distraction on a cognitively demanding task.”

Decision Fatigue: A concept that underlines that more decisions along the day you make, the following decisions become increasingly more difficult to make.

Declutter: A process where a person removes unnecessary items from their life.

Diderot effect: A phenomenon where a purchase of one thing leads to purchases of items that complement it. This can lead into consumptions spiral. Named after a French philosopher Denis Diderot (1713-1784).

Digital Minimalism: As in the physical world, minimalism can be also applied into the digital counterpart. Digital minimalism can be applied by i.a. unistalling distracting apps and removing unnecessary notifications on a phone.

Digital Nomad: A person who earns income through internet, thus being location-independent and utilizes this benefit by travelling and working around the world.

Direct-to-Consumer: A business model is cut: products are delivered straight from the company to consumer instead of utilizing retailers in between. For a customer, this can show up as a better value products and more cohesive customer experience.

Pareto Principle: Also known as 80/20 rule. The principle states that often times 80% of the output is derived from 20% of the input. Named after an Italian economist Vilfredo Pareto.

Passive Income: Income that is not tied directly to our time. Income that can be acquired without active work. 

Planned Obsolescence: A systematic practice of companies to artificially shorten the lifespan of their products in order to increase the number of recurring purchases of their customers.

Pomodoro: Time management technique introduced by Fransesco Cirilloin in the late 1980s. Using a timer, work time is divided into prespecified slots which are followed by short breaks.

Project 333: A minimalist challenge introuduced by Courtney Carver where during 30 days, only 33 clothing items can be worn.