You can't go wrong by wearing a professional looking outfit.
A hiring manager will look at your technical skills, but also to see how developed your soft skills are.
It's really important to follow up after an interview. Read more about what you should do to increase your chances of landing the job.
Negotiations are not only about money. Find out how to keep them positive and make it a "win-win" situation.
We all have to deal with job rejection at some point, and we can give you tips to help you get through it.