It took me almost a year to finish my last sketchbook. You can see the old one next to a brand new one. I have a little ritual I go through to prepare it for use: first I date and sign the cover in silver paint from a paint pen; then I stamp my address in the front cover; finally I make a list of my current color palette and paint a swatch of each color. In this case, I did a quick sketch of my artist's paint box, just for fun.
Now I am ready to go.