In my posts, I have talked about various tips to improve performance. All these can be arrived at by almost anyone by using simple principle. This most important and should have been mentioned first. On daily basis, whenever you find something wrong, or an error, or make a mistake, try to find what can be changed in your habits, procedure, mechanisms so that such wrong/mistake will not happen. This makes you agile and adaptive to continue improve oneself for a desirable life.