你学到的最聪明的生活小技巧是什么？

What is the most clever life hack you've learnedInam UllahI watched a documentary where a bunch of Italian students and filmmakers printed the 'Google' logo on a small white rented car and then went to the busiest intersections of Rome and parked in the middle of the road, surrounded the car with 'witches hats/traffic cones' and just stood there with noteboards and pens and a few cameras and stuff and spent over 2 hours there without a single person bothering them. They did similar ridiculous things whilst pretending to represent other huge companies and never got in trouble. The point of the doco was to explain that if you represent one of these companies that everyone knows, you can get away with almost anything and people just leave you alone or assume that you are allowed to do what ever you want.