How do you cope when you realize that you have forgotten something as it was misplaced

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I was in a hurry in the morning to work. After driving a bit, realized I am not wearing my watch. Worse, this was all because I had misplaced it and it was not in its usual place. I usually keep certain things at specific spots. I could have driven back to home but then I would be late and that would be even more frustrating. I guess I did not get much frustrated about same as I could look at time with help of smartphone or laptop. But then I realized I did have couple of occasions where I had forgotten to carry things like credit card during my recent vacation, documents to office or laptop charger to office. Well, atleast now I use my to-do list before a trip to take care of such issues. Did you ever had a situation where you realized that you forgot something because it was misplaced and how did you cope with same?