Usually, anything that doesn't appear interesting, bizarre or funny doesn't appeal to a person. When nothing appeals to a person's interest, nothing will ever be retained. This boils down to the fact that when you don't pay any attention to anything that is presented to you, there is a very slim chance of retaining it. At some point, you may have lost the entire idea after several seconds it has been presented to you. What do you need to do to maintain a good memory in the first place? Just be sure that your full attention is functioning at its highest level. It is one of the simplest things to do to remember something, but often times, we fail to practice it.
If you are able to learn, understand and remember better by using audio clips or materials or anything at all that can be heard through listening, then use this skill to retain information. This is a good approach to keeping yourself active of the things around you since it wouldn't be too hard to use your best learning style to work since, it's already your natural asset in the first place.
When you have so much information in your head, take full responsibility in keeping it all together. This is most important with dates, events, meetings and other complicated information. Label these with short, catchy words that are familiar to you so you wouldn't have to look up unnecessarily on your cluttered list each time. You can just use these catchy words to associate it with the important dates and events.
From time to time, check what you need to do on a certain day. Have a routine of the important things you need to do the next day. Never give up in doing little things for the sake of your memory because there is always a solution if you put your heart and mind to it.