The best way to deal with impatience is to not become impatient in the first place. A a good way to do that is to become easygoing.
     How do we do that?
     One good way called ‘The Shrug’ is described by Edward de Bono in his book, ‘The Happiness Purpose’. When you suffer a minor inconvenience, shrug. When a passer-by insults you, shrug. If you’re in a long queue, shrug. Shrug when a restaurant mucks up a booking. Shrug when someone makes a mistake. Shrug when you make a mistake.
     Get good at shrugging and who knows, when a meteor smashes your home to smithereens you might just be able to shrug and get on with your life. How empowering that would be?! Imagine the resilience you would have!
     When we overlook faults we get good at not seeing them. But if we look for faults we get good at finding them, which means we get good at finding things to test our patience. That’s the last thing we want.
   De Bono’s shrug helps us see an incident in a healthy perspective: we get good at reducing a problem to a mere inconvenience. And, it reduces the intensity of what we are feeling. Our distress evaporates.
     It’s not just faults we can overlook. We can use de Bono’s Shrug to avoid being judgmental. If you see someone acting weirdly, shrug. If they have luminous hair, shrug. If they’re wearing four cardigans on a hot day, shrug.

In short, the trick to being a patient person is to develop patience in the good times, when it is easy to be patient. A good way to do that is to leave aside the small battles we don’t need to fight, such as the minor hassles in life and the things that aren’t done perfectly. By giving them de Bono’s shrug we will get good at not finding problems to complain about, so that when the awkward times do come, we are less likely to become impatient. As a result we will be less anxious, and more resilient.
     The next time there is a ‘problem’, reduce it to an inconvenience. Apply de Bono’s shrug.

Q. ‘So, if someone steals my car, I just shrug?’
Feel all the emotions that come to you.
  If you have been practising de Bono’s shrug in the instances which don’t matter, you may find yourself coping better with serious incidents that do matter. 
  And obviously, take steps to get your car back.

Q. Is that it? Shrug?
Why not apply the other tips you have learnt?
(i) Label your emotion and be specific. That will help alleviate the turmoil.
(ii) Remind yourself that it is you who is making yourself distressed, not the theft.
(iii) How will you feel about this a year from now?
(iv) Is a button being pressed?
(v) Has a ‘should’ been violated?

Q. Yes, I could shrug a lot more. If my footy team loses, I could just shrug. If I am insulted by someone, I could just shrug. If I practise the shrug often enough, for long enough, I’d become super easygoing. Nothing would get to me.
  But do I want that? Do I want to be Mr/Mrs Serenity? No, because I think my life would lack colour. I want to experience the little irritations of life. I sort of want to feel the disappointment of seeing my footy team lose. If I had a magic pill that would take that disappointment away, I wouldn’t take it. Somehow, it feels important to me that I am able to experience the awful pain of seeing my footy team lose.
   Besides, if  I didn’t feel that pain, would I feel the exquisite pleasure of seeing them win? Would life become bland?
  So no, I don’t want to ameliorate most of my disappointments with a shrug. I don’t want to become Mr Serenity.
Fair point.
Perhaps we can consider developing the skill of shrugging, but not always applying it? Yes, let’s gain the ability to shrug, without always taking that option.

Q. And if I shrug, could it mean that I am simply frightened of something? Yes, I could just shrug if I am insulted by someone, but in some situations I might prefer to stick up for myself, and put the other person in their place, rather than shrug.
  Some people are taught that conflict is bad, and if they are insulted they should ‘turn the other cheek’ and ‘don’t react’. Those people may think that they are dealing with the incident in a mature way (and they may be), but it could also mean that are inhibited from sticking up for themselves by a fear of conflict.
Good point. In that instance, to apply de Bono’s shrug could be a poor option.
Like all the other suggestions in this tome, evaluate their worth and ask if they apply to you.  Or sometimes apply to you.

Q. To apply de Bono’s shrug might wallpaper over our deeper concerns, and we don’t want that. Elsewhere in this book you write about a road-rager who chose to do an anger management course. The road rager complied, discovered the buttons in him that were being pressed, and found ways to calm himself down. Had that young man been told to simply apply de Bono’s shrug, it would not have helped him. He might even have ‘bottled it up’, and eventually become even more explosive.
  Yes. In some situations a person might be better off figuring out why something upsets them, rather than just shrugging. We can ask ourselves, ‘What button is being pressed within me’?’