Your memories can be a good exercise for working with images.
Remember in detail events of the day. Do not hurry to run through the memories, carefully considering pop before the inner eye images. Pay attention to the colors, present items. Pay attention to the background. Remember how you felt at that moment. Immerse yourself in the event of a head, I feel it again.
Likewise remember more distant events, starting with the recent events, and ending with the oldest event.
Think of any significant event and try to examine the details more clearly as possible. If you are hard to see from this position, mentally walk up close and zoom, both through binoculars or a magnifying glass.
These exercises improve memory, and learn to play setup events and objects that have occurred in your life.