Hold onto all those old sketch books. They are filled with lots of ideas and reference material. I can't tell you have often I have gone back to look through my sketch books. There are lots of ideas of things I wanted to do, to create sketches of things I want to transfer into paper sculpture. Even the sketch books from 10 and 20 years ago are helpful. It can spark new ideas. It reminds you of where you've been and how far you've come. They contain material that can spark a new idea. Sometimes it is an idea I had 20 years ago but forgot about it, but now I can now grow upon that thought.
What hidden treasures do you have saved inside your old sketch books? Tell us in the comments below!