When enjoying photos/videos, you can note them or tag them with color. For example: 1) When you classify photos of your kid, you can note them as "baby 1 year 1 month". So, you can input "1 year", or "1 year 1 month", or "baby 1 year", and so on, to get all photos when your baby is 1 year old. 2) When watching photos, you can give all photos related to your travel a "blue" tag. Then, you can select "blue" tag to get photos about your travel.