Perpetual agenda it is a compilation of several advice on productivity , organization and management of the time… the idea is very good although  it seems to me a pity that does not have continuity. In one of its compilations it offers a decalogue to us to be more effective:  

1. It organizes: Organized and clean Ten the place of work,” Each thing in its site, and a site for each thing.” It is very easy. From first hour in the morning everything must be prepared to work correctly.
2. It takes care of the personal presentation: Specially if you work facing the public. It thinks that they see you you like representative of the company and that you must correspond to the image that waits for of you your interlocutor.
3. It prioritizes: You do each thing to its order. We must consider that to first hour we are but “fresh” to solve the difficulties and in the evening we did not render with the same one effectiveness.
4. It plans: A good technique is crearte a list of tasks to make, and according to importance, they are become and eliminating of your agenda.
5. It fulfills your word: We always must give the client which truely we are offering.
   If some problem arises and this is not possible is better than we give an explanation them although us they have not requested it.
6. Next to the telephone which needs to you: He is very annoying for the client and gives to disorganization impression the fact to be interrupting the conversation to go to look for certain information.
7. Listening: Listening the client we will discover its necessities of purchase and we will be able to advise to him better.
8. It knows: When better we know our products, better we will be able to inform to our clients and but easy it turned out to sell them. An suitable knowledge of the product transmits confidence and credibility to the client.
9. It writes down: It makes annotations when you speak with a client, supplier or when you make some consultation. It is a way to avoid forgetfulnesses and confusions.
10. It files: It uses cards of control of your clients or people who have asked for you information.

Source: Perpetual agenda

That seems to you the advice for one more a management effective of time?