Book Of Shadows
When you do your own book of shadows you must record everything in your own writing, it helps you to remember what you wrote.
In it pages are kept texts of rituals, records of spells and their outcomes (if they worked or not), Dreams you have had, astral travels, insights on meditations, and magicak recipes.  Time, day, date, and sign and phase of the moon/sun, this information will help you figure out when you at your best physically and magickally, and will be very useful in your future work.  You just might want to record extra information about the temperature, weather conditions, location, and other astrological data.  You might also want to write down your feeling before during, and after your magickal workings.