Manufacturers of home goods use the same raw materials in their production. Is it worth spending much time on research if it won't make much difference? What are your thoughts and experiences on this?

I am looking for a way to earn extra income in my spare time, and I plan to post my resume on a related service. Can such a platform help me find job offers with free time?

Hi, does someone know something about Yelp and how much can I trust?