There are thousands of self-help books on the shelves, but not all of us have time to read them, nor do we always trust their authors. 

So here's a quick, unprofessional source of useful advice: This Quora thread asks, "What is a good piece of random advice?"

Full of crowdsourced widsom from the Internet, the thread will give you a pretty good idea of what suggestions have worked for everyday people. 

Here are four random but successful pieces of advice people have received: