Putting information into categories will help you to remember it later! Everything has a category and compartmentalizing things in your memory by category can give you much greater recall. For example, chicken and hot dogs on your grocery list go into the category of meat and milk and water into beverages and so on.

When learning new information, try forming a visual image of it in your mind. When your brain is forced to come up with a picture to go along with the information, it has to analyze it more carefully that it otherwise would have. This attention to detail can help cement it in your mind. Not only that, but you can use the mental image that you formed to help you recall the information at a later date.

It may sound silly, but one way to improve memory is to surround yourself with good friends, and to maintain an active social life. A Harvard study suggests that those who had active and fulfilling social lives, showed rates of cognitive decline significantly lower than their less socially active peers.