What are the smartest life tips you've learned?

What is your smartest life Style? 

I'm going on the subway, I read your question and I didn't wait for another second to answer. Because a long time ago I made a small compilation that has helped me to have a Smarter life.

I recommend number 6, it has literally saved my job, my salary and my life.

1. The rule for spending gold: if you can't have two of what you want, you can't afford it;
2. When you are thinking of buying something that you do not necessarily need, imagine the happy object in one hand and the money in the other. Which one would you choose?
3. Never lend a friend more than you can afford to give away;
4. Do you want to find a good job after school? Make as many friends as you can make in your area who are about to graduate in 1 or 2 years;
5. Take a photo of all the business cards that people give you, only if you lose them;
6. Secretaries, technical support, and janitors are the most powerful people in an office. Make friends with them and you will be able to get everything you need;
7. If you forget someone's name, just say "I'm sorry, what was your name? He may look annoyed, but once I tell you his name, you just say," No, I meant your last name;
8. If you ever stub your toe or cut yourself, just look away. The brain associates pain when you have a lot of contact with the damage caused;
9. If you have to find yourself in the park late at night, park in front of a bench. These are always illuminated and have cameras everywhere;
10. Tie a small piece of fabric to your luggage. You will be able to find your suitcase in seconds!
11. Paste a photo of the tattoo you want in a place where you will always see it every day of the year. If you still want the tattoo after that, then it is worth having;
12. Success is a state of mind. If you want success, then start thinking of yourself as a success;
13. If you're shopping for headphones or speakers, try them out by playing "Bohemian Rhapsody." The song has the whole set of highs and lows on instruments and vocals.
14. Never be afraid to pay extra for a new bed or slippers. If you are not in one, you are in the other;
15. When you feel like you need something and you don't know what it is, it's water. It is always water;
16. Promise less and give more, always. People tend to do the opposite.

Thank you very much for getting here.