Found this today

[pain4l]

Some of you may already use it or something similar http://www.eyehit.com/degei/
i found it easy to use and saves on the old note pad lol

[eeji]

i used to use a notepad, then tried software, then gave up on them all!

let us know how you get on, I've not tried that one

[pain4l]

Will do mate, so far it seems easy enough to use, for snakes even easier as i have to add my lizards manually, but it can hold all sorts of info like how much food you have left there size and weight, thier parentage. It also gives you sheets that can be printed off when you sell an individual like how they are feeding and also what they are feeding on and how regular and thier growth process.
I would deffo recommend it