I'm forever searching for little bits of paper to jot down a note or give out my email address or some other thing. This is the perfect solution for that. I had a couple of paint chips left over from picking out new paint colors for my bedroom, and I also used the cover of the fall 2011 Urban Outfitters catalog.
Another fun little thing, I colored the tops of all my staples with a green Sharpie. It gives some color to my otherwise boring school papers sometimes.
The construction isn't too tedious. I used the basic instructions found via Curbly and Capital B to make mine. Obviously I had to change the measurements since I set mine up differently, but it's still the same basic matchbook style notebook with some pieces of printer paper cut to size.