If you are looking for a way to keep up with when you last fed your snake or other reptile, this is a great log book. Other bits of information is also helpful: defecation, shedding, mating, cleaning, handling, weight, and length. All of these can easily be notated on one line.
There is also a page to record the owner's name, date purchased, breeder, traits, etc. This is a great book to keep with your snake its whole life.