First of all, define your own personal goals and priorities according to your needs. You have to be realistic, in order to be effective as well. Information Technology can be applied and delivered by many different perspectives, so, choose your own way with maturity. Sometimes you also have to avoid being specialized too much. A broad view of I.T., is mostly necessary nowadays. Always have in mind the business perspective of I.T. too!
"If your solution does not help us make money, then there is not much you can do for us!".
There will be always, a lot of tasks and projects waiting for someone to coordinate and carry out. Therefore, always be selective. Evaluate and calculate which achievements will be most valuable for your own personal success and goals. Remember that personal success, does not mean that your company will not benefit as well. You have to align your own personal goals, with those of your company or organization you work for. Do not just do things the right way, but also the right way for you. If you don't benefit as well, then, there is no reason for working hard either. Always care, for your career advancement. It is the key to success.
In order to carry out even single tasks, planning, is an invaluable way to ensure success. Planning, also helps working, without stress. You should always be in control no matter what happens. Find and eliminate all these factors that could make you lose time, or even worse, endanger the outcome of your work. Do not risk, when you don't have to. Learn all possible information and facts necessary. Be sure you have access to all possible resources you may need. Sometimes, you should even consider planning for the unexpected.
Technology changes rapidly. Continuous training is a must. You would not like to hear from anyone, that things could be done better and cheaper, by using another method or newest technology. Always be informed about the current situation. Technological maturity is important. Any possible improvement might depend a lot on this.
If it is not broken don't fix it!
Sometimes it is better leaving things as they are, instead of "fixing them". If there is no process directly affected and business is done as usual, find something else to work on. This will be much more important and effective, than working on something that has always been there anyway.