How do you sort your pets!

[Dust_Bunny]

I've been looking for a new way to organize my pets, but I'm not sure how I should go about doing it!

I used to have them sorted by breed, but the groups ended up SUPER bloated and it looked like a mess. Now I've got it sorted by year, but that's even messier haha!
I'd love to know how you sort your pets~!

[sun]

We already have a similar thread here: viewtopic.php?f=20&t=3355110 !