Farcasters what's your answer to this famous YC question: 

Tell us a story where you most successfully hacked some (non-computer) system to your advantage?

Building @kiwi 
Writing @ https://kanfa.macbudkowski.com/

Interesting travel hack that’s saved me a lot of money: 

When booking a hotel, find the top businesses based in the same area, then call the hotel and tell them you have several business meetings and are looking for the best rate. Go down the list one-by-one and they’ll give you the top rate, no questions asked.