I use a hierarchical system.
I store everything in a folder under my computer.

I will put them under files like My documents, My Pictures, My Videos or My, Desktop.


Tagging- Linking someone to your post, picture or anything you want to inform that person or anyone else that they are a part of it.


Social Bookmarking -defined taxonomy system for bookmark s. Such a taxonomy is sometimes called a folksonomy and the bookmarks are referred to as tags.