Improving your memory may be something as simple as going out for a jog or a bike ride. Recent studies have shown that aerobic exercises can actually cause the development of new neurons in the hippocampus of the brain, which is considered to be the memory store center of the brain.
Use mnemonic devices to improve your memory. A mnemonic device is any rhyme, joke, song, or phrase that triggers memory of another fact, such as the abbreviation Roy G Biv, which tells you the colors of the spectrum. The best mnemonic devices are those which use humor or positive imagery, as you will have an easier time remembering them.