Welcome Daki!!!!!! Tatiana Cheng posted once a spreadsheet template in the forum. Here's the link to her post:
http://www.kittycats.biz/forum/showthread.php?tid=4233
I haven't used it yet and I'm still trying to get organized. One thing I do now s othat pairing doesn't get chaotic for me is to write down whether I'm going to pair two kitties again right after they've had a baby. I also look at the kitten and write down what I think are possible hidden traits and which parent they seem to have come from. If I re-pair the kitties I put a check next to their names, if I'm not sure I put a ? and if I prefer to pair one of them with another kitty I write that pair down and the new "bachelor(ette)"'s name below with a ?, indicating they're single.
One thing I'm starting to do with my new kitties, and that I wish I'd done sooner is family trees. At the moment I'm trying out a free software called XMind, which is a graphic organizer tool. I'm also thinking of making a list of all my female kitties and another one of all my male kitties showing age/DOB and where they are now ( a sort of census I suppose).
In the family trees I'm including shown and hidden traits. I keep thinking it would be soooo much easier if I'd started doing this at the beginning!
I hope this helps. I think everyone has their own system; more or less similar to other systems.
Have lots of fun with your kitties!!!!!