Back when I worked in advertising, I noticed that the art directors would stick little bits and pieces of type and logos on their mechanical board, drafting table, lamp, and wall. This made it easy to grab an often-used logo or piece of art.
Similarly, when you work with electronic page layouts, you use certain elements over and over. For instance, if you’re working on a magazine, you might want to have a series of different-sized frames to hold frequently used ads.
Rather than copying and pasting the frames from one part of the document to another, you can use InDesign’s libraries or snippets to hold the elements you use repeatedly.
Then, when you need to use an item from the library or the saved snippet file, ...