Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Method references are a shorthand way to write lambda expressions that call a single method. Rather than implementing a method in a functional interface, a method reference simply points to an ...

The internet became a thing just over four decades ago, and has now transformed into an essential service that connects billions of people worldwide. Every major industry, including healthcare, ...

Standard computer implementations of Dantzig's simplex method for linear programming are based upon forming the inverse of the basic matrix and updating the inverse ...

Grocery shopping can feel expensive and tiring, but some people have developed methods they believe can make it easier and better. For people like chef Will Coleman, the "6-to-1" shopping method is a ...

There’s a somewhat concerning new trend going viral: People are using ChatGPT to figure out the location shown in pictures. This week, OpenAI released its newest AI models, o3 and o4-mini, both of ...

Small talk has its uses, especially in the business world. It can help us suss each other out, establish a basic level of trust, or just fill the time while we’re waiting in line. But let’s be honest, ...

High-performing leaders understand the importance of implementing smart business strategies to drive sustainable growth. The right business strategy aligns a company’s objectives with the needs of its ...

Several major retailers in the U.S. use a century-old accounting practice known as “the retail inventory method,” which relies on retail prices to estimate inventory, even though it fails to take full ...

The STAR and PARADE methods of answering behavioral interview questions are both popular. They can help when you're asked about a time you faced a challenge or made a mistake at work, for example.