Your Business Guide to the Invoicing Universe

A broken washing machine, a drill you use once a year, or a bike shop where you wait weeks for a slot. Small annoyances like these are where good business concepts come from. We've picked ten where it's clear what the customer pays for and how you can start small.

Few people lose a job interview for lack of qualifications. They lose it through poor preparation and a handful of avoidable mistakes. Here are the dos and don'ts that decide the outcome: how to prepare, how to answer with specifics, what to ask, and what an employer may not ask you.

The first day back is usually the hardest day of January. Here is a simple three-day plan: what to do the evening before, how to start your first morning, and why it is fine not to run at full speed right away.

Your first job interview is stressful mostly because you don't know what's coming. The good news: for teen and part-time jobs, the questions repeat, and you can prepare for all of them. Here are the ones you'll almost certainly hear, sample answers, and a few things to sort out before you sign anything.